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WorksheetsFinal Statistics G8
Total questions: 31
Worksheet time: 44mins
In 2006, major league baseball teams spent a total of $2,326,706,685 on players’ salaries. Does this numerical value describe a population parameter or a sample statistic?
As it refers to (all) MLB teams (population), this is a parameter.
As it refers to (all) MLB teams (population), this is a statistic.
As it refers to some MLB teams (sample), this is a parameter.
As it refers to some MLB teams (sample), this is a statistic.
What is Quantitative Data?
Consist of attributes, labels, or nonnumerical entries.
Consist of numerical measurements or counts.
Consist of a subset of the population.
What is Qualitative Data?
Consist of attributes, labels, or nonnumerical entries.
Consist of numerical measurements or counts.
Consist of a subset of the population.
Classify the statement as nominal-level, ordinal-level, interval-level, or ratio-level measurement.
Temperatures inside 10 pizza ovens.
Nominal
Interval
Ordinal
Ratio
Classify the statement as nominal-level, ordinal-level, interval-level, or ratio-level measurement.
Salaries of the coaches in the NFL.
Nominal
Interval
Ordinal
Ratio
What is the mode on the given data
12, 15 19, 17, 12, 10, 18, 20, 25, 18, 13, 9
12 & 18
18
19
19 & 20
The value of the middle term in a ranked data is called _______
range
mean
median
mode
The median has the same value with _______
First Quartile
Second Quartile
Third Quartile
Fourth Quartile
3. It is the average of a data set.
A. MEAN
B. MEDIAN
C. MODE
D. RANGE
33, 25, 42, 25, 31, 37, 46, 29, 38
What is the Q3 of the data?
37
40
42
46
Find the median, first quartile, third quartile, and interquartile range of the data.
32, 53, 72, 66, 47, 54, 49, 67, 71
Median: 54
First Quartile: 49
Third Quartile: 67
IQR: 18
Median: 54
First Quartile: 48
Third Quartile: 69
IQR: 21
Median: 54
First Quartile: 48
Third Quartile: 69
IQR: 22
Median: 54
First Quartile: 49
Third Quartile: 69
IQR: 20
According to the following box-and-whiskers diagram, which of the following values represents the lower quartile of this data set?
20
28
13
16
Example of quantitative data ..
a) color of eyes
b) numbers of chairs
c) types of glasses
d) marital status
0, 89, 92, 97, 99, 100
Given the date below, what is the value of N?
30
40
50
60
What is the area under the normal curve between -2 SD and +2 SD?
99.7%
95%
90%
68%
The jersey number of a football player
Qualitative
Quantitative
When a distribution is bell-shaped, approximately what
percentage of data values will fall within 1 standard
deviation of the mean?
50%
68%
95%
99.7%
The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.
About what percent of the products last between 9 and 15 days?
What is the standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
6.89
10.1
7.26
9
Given above are marks obtained by 20 students in Math out of 25, presented in grouped frequency distribution table.
Identify the lower class limit for each class.
11, 16, 21
15, 20, 25
10.5, 15.5, 20.5
15.5, 20.5, 25.5
Given above are marks obtained by 20 students in Math out of 25, presented in grouped frequency distribution table.
Identify the upper class boundary for each class.
11, 16, 21
10.5, 15.5, 20.5
15, 20, 25
15.5, 20.5, 25.5
In a symmetric distribution (bell-shaped), the..
mean = mode
data is skewed
mean = median
all data points have the same value
This data is...
skewed to the right
skewed to the left
symmetrical
bimodal
According to the portion of the frequency table given, how many people have an MBA?
9
20
60
not enough information
