More Statistics Review

What is the median of the following data set?

25, 42, 36, 12, 19

• 36

• 25

• 39

• 26.5

Fifty percent of the test scores in 2nd Period were below what score?

• 82

• 75

• 85

• 93

At a football game, a researcher

randomly asks 100 people to name

their favorite sport. Is this a biased

sample?

• Yes

• No

Is there an outlier in the follow set of data?

24, 36, 19, 28, 65, 32

• Yes, 19

• No

• Yes, 65

What is the range of the follow set of data:

60, 85, 29, 32, 45, 17, 55

• 67

• 43

• 68

• 56

Which statistic can not be determined from a box plot representing the scores on a math test in Mrs. DeRidder’s algebra class?

• the lowest score

• the median score

• the highest score

• the mode

Corinne is planning a beach vacation in July and is analyzing the daily high temperatures for her potential destination. She would like to choose a destination with a high median temperature and a small interquartile range. She constructed box plots shown in the diagram below.

Which destination has a median temperature above 80 degrees and the smallest interquartile range?

• Ocean Beach

• Whispering Palms

• Serene Shores

• Pelican Beach

Find the IQR (interquartile range) using the following information.
Minimum:  77
Q1:  79.5
Median:  86.5
Q3:  90.5
Maximum:  99

• 86.5
• 22
• 90.5
• 11

Who has the least interquartile range?

•  Yardley Grocery
• Vindale Grocery

What percentage of girls have blonde hair?

• 30%
• 32%
• 29%
• 40%