Applied Math - Statistics - Quiz 1 - Descriptive Statistics

Which measure of central tendency requires that the numbers in a data set be arranged in order before you find or calculate it?

• Mean

• Median

• Mode

• All of them

• None of them

Which measure of central tendency tends to tune-out data value(s) that are extremely larger or extremely smaller than the majority of the numbers in a data set?

• Mean

• Median

• Mode

• All of them

• None of them

Which of the following measures of central tendency takes into account all of the data in a set of numbers?

• Mean

• Median

• Mode

• All of them

• None of them

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193
• 127
• 60
• 66

Find the mean of these numbers:

5, 11, 2, 12, 4, 2

• 4.1
• 6
• 4.5
• 4

Find the median of these numbers:

5, 4, 2, 7, 4, 3, 6, 6

• 4

• 4.5

• 6

• 6.5

Find the median of these numbers:

4, 2, 7, 4, 3

• 2
• 5
• 7
• 4

The heights of some students are given.
158cm     172cm      164cm
164cm     167cm      159cm
 What is the range of the heights?

• 13 cm
• 330 cm
• 164 cm
• 14 cm

What is the mode of the following data set?

5, 7, 7, 8, 12, 12, 5, 6, 13, 12

• 5

• 7

• 12

• no mode

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

• 7
• 23
• 31
• 34