Free Printable final quiz

1.

A science of collection, presentation of data.

a)

Population

b)

Statistics

c)

Analysis of Data

d)

None of the above

2.

Refers to the collection of facts where the researcher gets information.

a)

Collection of Data

b)

Organization of Data

c)

Analysis of Data

d)

None of the above

3.

Refers to the organization of data into tables, graphs and charts.

a)

Collection of Data

b)

Collation of Data

c)

Presentation of Data

d)

None of the above

4.

Statistics which is concerned with summarizing values to describe group characteristics of the data.

a)

Descriptive

b)

Inferential

c)

Parametric

d)

Non Parametric

5.

Refers to drawing of conclusions or generalizations from the analysed data.

a)

Analysis of Data

b)

Collection of Data

c)

Interpretation of Data

d)

Non Parametric

6.

Each and every element of a large group of data.

a)

Population

b)

Sample

c)

Variable

d)

Data

7.

When students are classified by their gender (male or female), it is an example of.

a)

Ranking the object

b)

one-way classification

c)

two-way classification

d)

none of these

8.

What is a synonym for mean?

a)

same

b)

average

c)

total

d)

percent

9.

Which definition best describes a range?

a)

the middle number in the data

b)

the average of the data

c)

the difference between the lowest and the highest values

d)

the number of results provided

10.

How can mathematicians determine the distribution of data?

a)

They look for the most popular answer

b)

They find the mean by adding all the numbers and dividing by the total

c)

They look for the middle number in the data

d)

They look at how the data is spread out when it is organized on a graph

11.

How can statistics be defined?

a)

any type of math

b)

as numbers

c)

the study of data

d)

plotting dots on a graph

12.

Which of the following is NOT an economic activity

a)

Production of books

b)

Investment in stocks

c)

Donation of blood

d)

Consumption of Ice creams

13.

Statistics in singular sense means

a)

Statistical data

b)

Statistical procedure

c)

statistical laws

d)

None of these

14.

Distrust of statistics is due to

a)

limitation of statistics

b)

Misuse of statistics

c)

Insufficient statistical methods

d)

None of these

15.

Statistics in plural sense means

a)

Statistical methods

b)

Descriptive statistics

c)

Quantitative data

d)

Qualitative data

16.

Statistics in singular sense includes

a)

Collection of data

b)

Organisation of data

c)

Analysis of data

d)

All of these

17.

Which of the following is NOT a limitation of statistics

a)

It does not study individuals

b)

Statistics can not be misused

c)

Statistics does not study the qualitative aspect of a problem

d)

None of these

18.

Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4

a)

9

b)

5

c)

3

d)

7

19.

Find the median:
3, 5, 7, 4, 3, 1

a)

3 and 4

b)

There isn't one

c)

3.5

d)

3

20.

At Dominique's Donuts the number of donut holes in a bag can vary. Help Dominique find the mode.
12,10,10,10,13,12,11,13,10

a)

13

b)

12

c)

11

d)

10

21.

The number of miles that Jenna cycled each week for a 7-week period is shown:
36, 42, 28, 52, 48, 36, 31
What is the median number of miles Jenna cycled?

a)

24

b)

36

c)

39

d)

52

22.

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below:
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

a)

5

b)

6

c)

9

d)

11

23.

What is another word for mean?

a)

median

b)

average

c)

mode

d)

sum

e)

quotient

24.

What's another word for median?

a)

average

b)

mode

c)

middle

d)

mean

25.

In the first round of the playoffs, Ben Simmons points (in each game) was listed below. How many points per game is he averaging in the playoffs?

17 , 24 , 19 , 17 , 14

a)

16.8

b)

17.8

c)

17

d)

18.2

26.

When a distribution is divided into hundred equal parts, each score point describes the distribution as

a)

percentile

b)

median

c)

quartile

d)

decile

27.

Rochelle got a score of 55 which is equivalent to 70th percentile in a mathematics test. Which of the following is not true?

a)

She scored above 70% of her classmates

b)

Thirty percent of the class got scores of 55 and above

c)

If the passing mark is the first quartile, she passed the test

d)

Her score is below the 5th decile

28.

What is the Q3 of this data set?
6, 7, 2, 1, 5, 2, 1, 6

a)

5

b)

6

c)

5.5

d)

6.5

29.

What is the value of Q3?
1, 3, 4, 5, 6, 8, 11, 13, 17

a)

4

b)

11

c)

3.5

d)

12

30.

Which of the following is not a measure of dispersion?

a)

range

b)

variance

c)

standard deviation

d)

mode

31.

Which of the measures of location is used in computing for the variance of a distribution?

a)

mean

b)

median

c)

mode

d)

midrange

32.

Which of the measures of dispersion only uses two values in the distribution?

a)

range

b)

standard deviation

c)

variance

d)

mean deviation

33.

Calculate the standard deviation of the set of data.

a)

137.64

b)

130.25

c)

11.73

d)

11.41

34.

Diagram shows a set of 7 values of data, where k is an integer. The mode of the set of data is 7 and the median is 5. An integer, 8 is added to the original set of data. Calculate the new mean of the data.

a)

4.75

b)

5.43

c)

5.75

d)

6.57

35.

If the variance of a data set is 30.25, what is the standard deviation?

a)

5.5

b)

15.125

c)

60.5

d)

915.0625

36.

Find the standard deviation for the following data; 86, 95, 78, 67, and 85.

a)

82.2

b)

5

c)

9.33

d)

10.43

37.

It is defined as the square root of the variance.

a)

coefficient of variation

b)

midrange

c)

standard deviation

d)

kurtosis

38.

Compute the coefficient of variation for the sample data:

4, 6, 3, 7, 9, 4, 2, 1, 4, 2

a)

59.25%

b)

62.25%

c)

69.25%

d)

72.25%

39.

A and B are both sets of ratio-level data.
A has a mean of 12 and a standard deviation of 0.6. B has a mean of 6 and a standard deviation of 0.4.
---
Use the Coefficient of Variation to determine which set has more variation.

a)

Set A

b)

Set B

c)

They have the same variation

d)

It is impossible to tell with this information

40.

The correlation coefficient is a number "r" such that:

a)

-1<r<1

b)

-1>r>1

c)

-1≤r≤1

d)

-1≥r≤1

41.

r=-0.89

a)

Strong positive

b)

Weak positive

c)

Strong negative

d)

Weak negative

42.

As x increases, y decreases.

a)

A) no correlation

b)

B) negative correlation

c)

C) correlation coefficient

d)

D) positive correlation

43.

What is the best definition of the least squares regression line?

a)

The line that minimizes the squares of the horizontal distances between the data points and the line.

b)

The line that minimizes the squares of the vertical distances between the data points and the line.

c)

The line that minimizes the vertical distances between the data points and the line.

d)

The line that passes through the most number of data points.

44.

A residual is

a)

the difference between the squares of predicted values in a LSRL and data points on a scatterplot

b)

the difference between the observed x–value and the predicted x–value.

c)

the difference between the predicted x–value and the observed x–value.

d)

the difference between the observed y–value and the predicted y–value.

45.

Use your calculator to compute the least-squares regression line for the following data:

x: 3.9, 5.8, 4.8, 3.3, 1.8, 3.4, 3.2

y: 4.6, 4.1, 5.2, 4.5, 9.2, 5.6, 4.3

a)

y = -0.97x+8.99

b)

y = 0.97x-8.99

c)

y = -62x+6443

d)

= 62x-6443

46.

If x is temperature and y is coffee sales, use the following formula to determine the coffee sales on a 34° day.

y = -60x+6443

a)

$4584

b)

$4673

c)

$8303

47.

What is the formula for the probability of A given B?

a)

P(A|B) = P(A and B)/P(B)

b)

P(A|B) = P(A and B)/P(A)

c)

P(A|B) = P(A or B)/P(B)

d)

P(A|B) = P(A or B)/P(A)

48.

The sales of a new popular ice-cream flavour in a beach resort. Choose the true statement.

a)

positive secular trend

b)

seasonal pattern

c)

cyclic pattern

d)

random pattern

49.

The number of daily births in a particular country hospital over a period of 10 days.

a)

negative secular trend

b)

seasonal pattern

c)

cyclic pattern

d)

random pattern

50.

The __________ component of a time series measures the fluctuations in a time series due to economic conditions of prosperity and recession with a duration of approximately 2 years or longer

a)

Trend

b)

Seasonal

c)

Cyclical

d)

Randomness

51.

Which of the following is not one of the four types of variation that is estimated in time-series analysis?

a)

Predictable

b)

Trend

c)

Cyclical

d)

Seasonality

52.

A restaurant has been experiencing higher sales during the weekends as compared to the weekdays. Daily restaurant sales patterns for this restaurant over a week are an example of the __________ component of time series

a)

Trend

b)

Seasonality

c)

Cyclical

d)

Randomness

53.

which is the most suitable length of moving average for smoothing in quarterly data (frequency)

a)

7

b)

3

c)

4

d)

12

54.

Which is moving average's objective?

a)

forecasting

b)

smoothing

c)

estimate trend & cycle

d)

all the above options

55.

The number of daily births in a particular country hospital over a period of 10 days.

a)

negative secular trend

b)

seasonal pattern

c)

cyclic pattern

d)

random pattern

56.

If $p_0$ & $p_1$ represents the base and current year prices. Price relative is ...

a)

$\frac{\text{}P_1}{P_0}$

b)

$\frac{\text{}P_1}{P_1}$

c)

$\frac{\text{}P_0}{P_1}$

d)

None of the above

57.

Which of the following index number is based on Geometric Mean

a)

Paasches Index Number

b)

Fishers Index Number

c)

Simple Index Number

d)

Bowleys Index Number

58.

The index number which uses both Base and Current year quantities is

a)

Paasches Index Number

b)

Laspeyres Index Number

c)

Fisher Index Number

d)

None of the above

59.

$\ I_{2000,2020}=\ ?$

if the price of sugar per kg in the year 2000- Rs 22, The price of sugar per kg in the year 2020- Rs 44. Price index

a)

50

b)

200

c)

2

d)

2000

60.

Equation for Simple aggregative Index Number is....

a)

$\frac{\sum_{ }^{ }P_1}{\sum_{ }^{ }P_0}\times100$

b)

$\frac{\sum_{ }^{ }P_0}{\sum_{ }^{ }P_1}\times100$

c)

None of these

61.

Example for a weighted Index Number

a)

$\frac{\sum_{ }^{ }P_1}{\sum_{ }^{ }P_0}\times100$

b)

$\frac{\sum_{ }^{ }P_0}{\sum_{ }^{ }P_1}\times100$

c)

None of these

d)

$\frac{\sum_{ }^{ }P_1Q_0}{\sum_{ }^{ }P_0Q_0}\times100$

62.

Laspeyres Index Number is 112 and Paasches Index Number is 175. Fishers Index Number is

a)

112

b)

175

c)

140

d)

200

63.

$\frac{\sum_{ }^{ }p_1q_0}{\sum_{ }^{ }p_0q_0}\times100$

Identify the index number with the above formula

a)

Paasches Index Number

b)

Laspeyres Index Number

c)

Fisher Index Number

d)

None of the above

64.

The unit that we applied for Index Number is ...

a)

RM

b)

KG

c)

KM

d)

No specific unit

65.

The price of the house Sulaiman bought in the year 1998 was

RM 110000. In the year 2000, the price of the house went up to

RM 130000. Calculate the price index of the house for the year 2000 based on the year 1998.

a)

118

b)

118.18

c)

118.20

d)

119

66.

A factory produces 8000 cans of drink in the year 2000 and 12000 cans of drink in the year 2001. Calculate the index number for the production of cans of drink in year 2001 based on year 2000.

a)

120

b)

130

c)

140

d)

150

67.

Which of the following are possible samples spaces for tossing 2 coins? (May be more than one correct answer)

a)

{H, T, H, T}

b)

{HH, HT, TH, TT}

c)

{H, T}

d)

{T, H}

e)

{TT, HH, TH, HT}

68.

Slips of paper marked with the numbers 1, 2, 3, 4, and 5 are placed in a box. After mixing, two slips are drawn. How many possible outcomes are there?

a)

5

b)

10

c)

15

d)

25

69.

An unprepared student takes a 3-question true/false quiz in which he guesses the answers to all 3 questions. What is the probability he gets all 3 correct?

a)

1/2

b)

1/3

c)

1/6

d)

1/8

70.

Which of these cannot be considered a probability of an outcome?

a)

1/3

b)

-1/5

c)

0.80

d)

112%

e)

1

71.

Roll a die one time. Find P(even number).

a)

1/2

b)

1/3

c)

3/6

d)

2/6

72.

Draw one card from a standard deck. Find P(ace)

a)

1/13

b)

1/4

c)

4/13

d)

1/52

73.

Rolling a pair of dice, find P(sum > 9).

a)

1/2

b)

1/12

c)

1/6

d)

1/9

74.

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

a)

5/6

b)

1/2

c)

1/3

d)

1/6

75.

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?

a)

2/7

b)

5/49

c)

5/7

d)

10/49

76.

Probability can be written as ...

a)

a fraction

b)

a decimal

c)

a percent

d)

all of the above

77.

Amelia receives a treat bag. The treat bag contains 10 gumballs, 5 pixie sticks, 2 bracelets, and 3 chocolates. If Amelia selects 3 items from her treat bag without looking and gives them to her sister, which could NOT represent a possible outcome for the items Amelia selects?

a)

gumball, gumball, gumball

b)

pixie stick, gumball, chocolate

c)

bracelet, bracelet, bracelet

d)

gumball, gumball, pixie stick

78.

A set of all possible outcomes is known as -

a)

a list

b)

a complement

c)

a sample space

d)

an event

79.

X ~ B(20, 0.5)

Find P(X = 7)

a)

0.07

b)

0.13

c)

0.87

d)

0.94

80.

Choose the correct sign

'probability more than 7'

a)

P(X>7)

b)

P(X<7)

c)

P(X≥7)

d)

P(X≤7)

81.

Find the mean of a binomial distribution with n=50 and p=0.4

a)

50

b)

4

c)

20

d)

10

82.

Find the variance of a binomial distribution with 50 trials and p= 0.4

a)

12

b)

15

c)

10

d)

20

83.

If X~Po(λ) and P(X=0) = 0.0025, find λ.

a)

5

b)

0

c)

4

d)

6

84.

Find the standard deviation of a binomial distribution with n=50 and p=0.4 (Round to the nearest tenth)

a)

4.2

b)

3.5

c)

12.0

d)

6.2

85.

Which of the following is the correct formula to find the probability of any instance of a Poisson random variable "x"?

a)

$P\left(x\right)=\frac{\mu^x\cdot e^{-\mu}}{x!}$

b)

$P\left(x\right)=\frac{e^{\mu}\cdot e^{-x}}{x!}$

c)

$P\left(x\right)=\frac{x^{\mu}\cdot e^{-\mu}}{\mu!}$

d)

$P\left(x\right)=\frac{\mu^x\cdot e^{-\mu}}{\mu!}$

86.

The mean number of accidents per month at a certain intersection is 3. What is the probability that in any given month exactly 4 accidents will occur at this intersection?

[Assume accidents occur at random.]

a)

0.0081

b)

0.1680

c)

0.6721

d)

0.7500

87.

A mean number of 0.6 major hurricanes strike the U.S. mainland each year. Find the probability that more than one major hurricane will strike the U.S. mainland in a given year, assuming that hurricane landfalls occur randomly.

a)

0.1219

b)

0.8781

c)

0.3293

d)

0.6707

88.

μ = 70 , σ = 8 , X = 50 . Find z score

a)

2.5

b)

-2.5

c)

5.2

d)

-5.2

89.

What is the the total area under the standard normal distribution curve?

a)

100

b)

25

c)

.5

d)

1

90.

What shape is a normal distribution curve?

a)

Half curve

b)

Round curve

c)

Bell curve

d)

Square curve

91.

A variable that can assume any possible value between two points is called

a)

Discrete random variable

b)

Discrete Sample Space

c)

Continuous random variable

d)

Random Variable

92.

P(A∣B)=

a)

P(A⋂B)/P(A)

b)

P(A⋂B)/P(B)

c)

P(A⋃B)/P(A)

d)

P(A⋃B)/P(B)

93.

Given P(A) = .8 and P( B| A) = .3, find P( A and B).

a)

2.6

b)

.12

c)

.24

d)

.38

94.

What is a best-fit line used for?

a)

To make predictions

b)

To make the graph look pretty

c)

To connect the points

d)

To make it look like you know what you are doing

95.

Write the linear regression equation for the following data points. Round to the nearest tenth.

a)

$y=-0.83x+0.61$

b)

$y=-0.83x+0.63$

c)

$y=0.83x+-0.8$

d)

$a^2+b^2=c^2$

96.

Linear regression analysis produces an equation of Y = 7 - 3.2X. This indicates that:

a)

An X value of 0 would would increase Y by 7.

b)

A 1 unit decrease in X results in a 3.2 unit decrease in Y.

c)

A 1 unit increase in X results in a 3.2 unit increase in Y.

d)

A 1 unit increase in X results in a 3.2 unit decrease in Y.

97.

A correlation shows that two things are

a)

causing each other

c)

unrelated

d)

best friends

98.

correlation measures _______________ among variables.

a)

Direction of relationship

b)

intensity of relationship

c)

direction & intensity of relationship

d)

Cause & effect relationship

99.

What enables us to examine the relationship between two variables in a scatter diagram?

a)

degree of closeness of the scatter points

b)

overall direction of the scatter points

c)

degree of closeness of the scatter points and their overall direction

d)

None of these

100.

The total of frequency up to an upper class limit or boundary is known as

a)

average frequency

b)

cumulative frequency

c)

frequency distribution

d)

frequency polygon

101.

The data presented in the form of frequency data is known as

a)

grouped data

b)

ungrouped data

c)

secondary data

d)

calculated data

102.

A tabular arrangement for classifying data into different groups is called

a)

Frequency polygon

b)

frequency distribution

c)

arithmetic mean

d)

Class interval

103.

Cumulative frequency polygon is also called

a)

ogive

b)

histogram

c)

Frequency Curve

d)

Bar Graph

104.

The repeating numbers in a data set is termed as

a)

Mean

b)

Median

c)

Mode

d)

Frequency

105.

A probability curve that fits all of it values in a symmetrical histogram. The majority of data values in this curve sit around the probability mean.

a)

Normal distribution

b)

Cumulative frequency

c)

Standard error of the mean

d)

Variance

106.

Compares categories of data with bars representing the frequencies

a)

Dot Plot

b)

Histogram

c)

Bar Graph

d)

Stem/Leaf Plot

107.

A sample should be

a)

representative of only middle school students only

b)

a very large group

c)

representative of the population

d)

representative of people who volunteer

final quiz

Total questions: 107

Worksheet time: 4hrs 36mins

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