Mean Median Range Iqr

What is the mean?

• happening the most

• the number in the middle

• biggest-smallest

• the average

What is the mean of these numbers?
4,5,5,2,3,3,2,8

• 40

• 24

• 4

• 256

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91

• 273

The height of three basketball players is 210 cm, 220 cm and 191 cm.
What is their average height?

• 210

• 207

• 220

• 200

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

What is the IQR?

• 5.5

• 4

• 4.5

• 6

The IQR is a measure of __________________ .

• center

• variation

• quartiles

• range

What is the term that means the middle data value?

• Median

• Mode

• Mean

• Range

Forty students took a statistics exam having a maximum of 50 points. The distribution of scores is given in the stemplot. Which of the following are the correct median and interquartile range of this distribution?

• median = 31;

  IQR = 21

• median = 32;

  IQR = 21

• median = 32;

  IQR = 23 to 44

• median = 33;

  IQR = 21

What is the interquartile range (IQR) of the data set?

• 20

• 25

• 5

• 10