Statistics Test

The distribution of scores on a recent physics quiz is shown in the box plot below. What is the interquartile range?

• 6

• 12

• 26

• 72

What is the median of the data?

• 5

• 6

• 7

• 8

What is the mean of the data?

{10, 14, 18, 22, 26, 30, 46, 46}

• 24

• 26.5

• 28

• 36

The weights of 9 randomly selected bananas, in grams, are given below in ascending order

145, 152, 156, 158, 160, 160, 164, 174, 180

Which of the following would be the correct box plot?

• 
• 
• 
• 

Mohammed surveyed 15 students in the class to determine how many pets each had in their household. The results are shown below. What was the mean number of pets?

The box plot below shows the distribution of gasoline prices, in dollars per gallon, of a survey of gasoline stations around the country. What is the difference between the maximum price per gallon and the third quartile price?

Which data set has the largest standard deviation?

• {12, 15, 50, 52, 53, 53}
• {28, 50, 55, 61, 75, 77} 
• {100, 105, 116, 125, 140, 160}
•  {205, 209, 220, 223, 235, 240} 

• 100
• 90
• 65
• 92

What is the mode?

• # you see the most
• the average
• biggest - smallest
• the middle #

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most