Descriptive statistics - Part 1

Estimate the frequency of the class with the greatest frequency.

• A. 28

• B. 21

• C. 58

• D. 53

What is the maximum data entry?

• A. 96

• B. 38

• C. 9

• D. 41

The heights (in inches) of a sample of basketball players are shown:

76 79 81 78 82 78

Find the mean.

• A. 78.5

• B. 79

• C. 474

• D. 78

The heights (in inches) of a sample of basketball players are shown:

76 79 81 78 82 78

Find the median.

• A. 78.5

• B. 79

• C. 79.5

• D. 78

The heights (in inches) of a sample of basketball players are shown:

76 79 81 78 82 78

Find the mode.

• A. 78.5

• B. 79

• C. 79.5

• D. 78

A table that shows classes or intervals of data entries with a count of the number of entries in each class. 

• Frequency distribution
• Frequency polygon
• Histogram
• Ogive

Which of the following is a measure of central tendency?

• Range

• Mean

• Standard deviation

In a frequency distribution, the class width is the distance between the lower and upper limits of a class. 

• True
• False

An ogive is a graph that displays relative frequencies. 

• True
• False

The __________ of a class is the sum of the lower and upper limits of the class divided by tow. 

• interval
• midpoint 
• relative frequency
• cumulative frequency