Stats test

What is the mode of the following data set?

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

• 5

• 7

• 12

• no mode

The scores awarded to 25 students for an assignment were as follows:
4  7  5  9  8  6  7  7  8  5  6  9  8    5  8  7  4  7  3  6  8  9  7  6  9
What is  the mode?

• 6
• 7
• 8
• 9

Calculate the mean:

23, 15, 8, 12, 26, 5, 22, 9

• 17.1

• 15

• 13.3

• 12

Calculate the mean:

19, 23, 26, 22, 31, 33, 29, 21, 30

• 23.4

• 21

• 29.3

• 26

What is the median of this data set?

• 8

• 12

• 15

• 19

What is the least and greatest value of this data set?

• 6 and 8

• 6 and 19

• 8 and 15

• 15 and 19

What percent of students have a height between 58 inches and 60 inches?

• 25%
• 50%
• 75%
• 100%

What is the overall shape of the graph?

• Approximately Symmetrical
• Skewed left
• Skewed right

Identify the shape of distribution of the box-and-whisker plot. Explain.

• Skewed right; because the left whisker is longer

• symmetric; whiskers are about the same length

• Skewed left; because the right whisker is longer

• Skewed left; because the left whisker is longer

How many students were greater than or equal to 60 inches tall?

• 21
• 11
• 17
• 6