Stats Test Review

The following data set shows the results of a recent patient survey at Columbus Medical Center. Which dot plot represents the data?

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Data on commute times were gathered from 100 individuals in three different cities. The tables show the average commute times for each sample over three consecutive work weeks. Which histogram matches Los Angeles?

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The table shows the hourly wages for 15 different jobs. One of the data points was lost. Which option could be a possible data point?

• 10.90

• 11.90

• 12.00

• 18.10

The following table shows the average high temperatures in February for twelve cities at $50\degree$ North latitude. What is the maximum value?

• 82.5

• 86

• 88

• 90

The following table shows the average high temperatures in February for twelve cities at  $50\degree$  North latitude. What is the median?

•  $66$ 

• 67

• 68

• 88

The following table shows the average high temperatures in February for twelve cities at $50\degree$ North latitude. What is the quartile 1?

• 41

• 45.5

• 46

• 50

The GRE is an exam that most students are required to take to enter graduate school. In 2015, scores were approximately normally distributed with a mean of 280 and a standard deviation of 15. What percent of scores were between 265 and 295?

• 68%

• 95%

• 81.5%

• 99.7%

Miguel is keeping track of the number of penalties that occurred at the last two football games of his high school. The frequency distributions of the number of penalties for the two games are shown in the dot plots below. Which measure of center and spread would you use for each?

• Mean and standard deviation

• Median and standard deviation

• Mean and IQR

• Median and IQR

What is the median number of penalties for Data Set 1?

• 1

• 1.5

• 2

• 3

What is the mean number of penalties for Data Set 2?

• 2

• 2.1

• 2.2

• 3