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Statistical Methods, Shia P.G. College, Lucknow

Total questions: 42

Worksheet time: 12mins

Name
Class
Date
1.

A population is a collection of all individuals, objects, or measurements of interest.

a)

True

b)

False

2.

Statistics are used as a basis for making decisions.

a)

True

b)

False

3.

Descriptive statistics are used to find out something about a population based on a sample.

a)

True

b)

False

4.

There are four levels of measurement: qualitative, quantitative, discrete, and continuous.

a)

True

b)

False

5.

Set of methods to obtain data and then organize, summarize, present, analyze, interpret and reach conclusions based on the data

a)

Statistics

b)

Inferential Statistics

c)

Descriptive Statistics

6.

Set of techniques and methods that serve to:

Organize

Analyze

Represent

a)

Statistics

b)

Inferential Statistics

c)

Descriptive Statistics

7.

Set of methods that serve to:

Do generalizations Make objective decisions

a)

Statisctics

b)

Inferential Statistics

c)

Descriptive Statistics

8.

It is the complete set of all the elements that will be studied

a)

Inferential Data

b)

Population

c)

Sample

9.

The ordinal level of measurement is considered the "lowest" level of measurement.

a)

True

b)

False

10.
What is the Mode?
  22,7,22,1,7,18,18,16,6,6,7
a)
7
b)
18
c)
21
d)
6
11.
What is the Median?
8,13,2,4,48
a)
8
b)
48
c)
2
d)
9
12.
What is the Mean?
9, 5, 7
a)
8
b)
11
c)
7
d)
6
13.
Katie earned 84,92,84,75 and 70 on her first 5 tests. What is the minimum grade Katie needs to earn on the next test to have a mean of 84?
a)
81
b)
84
c)
95
d)
99
14.
Your test scores are 87, 86, 89, and 88.  You have one more test in the marking period. •You want your average to be a 90.  What is the lowest score you must get on your last test?
a)
96
b)
90
c)
94
d)
100
15.
Your test grades are 72, 83, 78, 85, and 90.  You have one more test and want an average of an 82. What must you earn on your next test?
a)
84
b)
82
c)
100
d)
81
16.
The data below represents the numbers of books that twelve students read.
2, 4, 7, 8, 9, 12, 14, 18, 19, 21, 30, 32
Which box plot correctly summarizes the data? 
a)
A
b)
B
c)
C
d)
D
17.
The amount of items that each student sold for the class fundraiser was recorded. What percent of students sold at most 44 items?
a)
30%
b)
35%
c)
50%
d)
65%
18.
Ms. Long tracked the number and age of students that visited the library per month and recorded the data below. Where would the median fall?
a)
9-11
b)
12-14
c)
15-17
d)
18-20
19.
What percent does each of the 4 sections contain on a box and whisker plot?
a)
100%
b)
75%
c)
50%
d)
25%
20.
What is the minimum value?
a)
64
b)
58
c)
66
d)
61
21.
What is the maximum value?
a)
58
b)
66
c)
64
d)
60
22.
What is the interquartile range (IQR)?
a)
4
b)
64
c)
60
d)
8
23.
Which best represents the Interquartile Range
a)
15
b)
93
c)
85
d)
78
24.

It is a subset of selected members

a)

Population

b)

Sample

c)

Qualitative Data

25.

It is a set that groups a series of data with similar characteristics

a)

Variable

b)

Qualitative Statistics

c)

Quantitative Variable

26.

Goals scored in a soccer match

a)

Discrete

b)

Continuous

c)

Ordinal

27.

Your favourite food

a)

Nominal

b)

Ordinal

c)

Discrete

28.

What type of sampling should be chosen if you want to know how many children likes art in Mexico

a)

Simple Random

b)

Stratified

c)

Cluster

d)

Systematic

29.

What type of sampling should be chosen if you want to know the opinion of Netflix users

a)

Cluster

b)

Quota

c)

Convenience

d)

Stratified

30.

Data measured on a nominal scale can only be classified into categories.

a)

True

b)

False

31.

If we select 100 persons from 25,000 registered voters and question them about candidates and issues, the 100 persons are referred to as the population.

a)

True

b)

False

32.

The principal difference between the interval and ratio scale is that the ratio scale has a meaningful zero point.

a)

True

b)

False

33.

The number of children in a family is a discrete variable.

a)

True

b)

False

34.

The main purpose of descriptive statistics is to:

a)

Summarize data in a useful and informative manner.

b)

Make inferences about a population.

c)

Determine if the data adequately represents the population.

d)

Gather or collect data.

35.

Which of the following is an example of a continuous variable?

a)

Tons of concrete to complete a parking garage

b)

Number of students in a statistics class

c)

Zip codes of shoppers

d)

Rankings of baseball teams in a league

36.

A portion or part of a population is called a

a)

Random survey

b)

Sample

c)

Tally

d)

Frequency distribution

37.

A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 2% superior, 8% good, 45% average, 45% poor, and 0% inferior.

a)

The instructor's performance was great!

b)

The instructor's performance was inferior.

c)

Most students rated the instructor as poor or average.

d)

No conclusions can be made.

38.

A portion or part of a population is called a

a)

Random survey

b)

Sample

c)

Tally

d)

Frequency distribution

39.

A survey includes a question regarding marital status that has the following responses: single, married, divorced, separated, or widowed. What is the scale of measurement for this question?

a)

Ratio

b)

Interval

c)

Ordinal

d)

Nominal

40.

What level of measurement is the Centigrade temperature scale?

a)

Ratio

b)

Interval

c)

Ordinal

d)

Nominal

41.

Which one of the following is referred to as the population mean?

a)

µ

b)

s

c)

σ

d)

χ

42.

What is the median of 26, 30, 24, 32, 32, 31, 27, and 29?

a)

32

b)

30

c)

29

d)

29.5

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