Intro Statistics Review

Students will receive treats for scores at or above the upper quartile. What is the lowest score a student can get and still receive an award?

• 85

• 80

• 98

• 93

• 
• 
• 
• 

Which of the following is the BEST description of the data?

• The mean is about 29.1, there is a peak at 30, gaps at 28 and 32, data is not symmetrical

• The median is 29, there is a cluster from 26 – 31, peak at 29, no outlier

• The mode is 29, there is a gap from 28 – 31, peak at 29, no outlier

• The range is 7, there is a peak at 29, cluster from 29 – 31, gaps at 28 and 32

The 100-meter dash time below represent the top five. What are the mean and median for the data?

9.8, 9.9, 9.5, 10.1,10

• Mean 9.86, Median 9.8

• Mean 9.86, Median 9.5

• Mean 9.5, Median 10

• Mean 9.86, Median 9.9

Don raises dogs. The heights, in centimeters, of Don's dogs are listed. Which of the following statements accurately describes the shape, center, and spread of the data?

• The mode is 96, there are gaps at 92 and 94, the distribution is skewed left, and 90 and 91 are outliers

• The range is 9, there is a gap at 94, the distribution is skewed right, and there is peak at 96.

• The mean is about 95.5, there are no gaps, the distribution is symmetrical, and 90 is an outlier.

• the mean is about 95.5, there are no gaps, the distribution is symmetrical, and 90 is an outlier.

Identify the minimum, first quartile, median, third quartile, and maximum for the data.

• Minimum 59, first quartile 60, median 70, third quartile 74, maximum 78

• Minimum 59, first quartile 61, median 70, third quartile 75, maximum 78

• Minimum 59, first quartile 61, median 70, third quartile 74, maximum 78

• Minimum 59, first quartile 60, median 70, third quartile 74, maximum 78

What is the IQR?

• 15

• 13

• 14

• 16

Is the following question statistical or non-statistical?
You ask people in an airport, "How many states have you visited?"

• Statistical Question

• Non-Statistical question

How many students spent 7 hours doing homework that week?

• 1

• 3

• 5

• 6

How many students scored between 95 and 100?

• 6

• 7

• 9

• 14