WPHS Unit 7 Quizzizz

The scatter plot below shows the average traffic volume and average vehicle speed on a certain freeway for 50 days in 1999. Which statement best describes the relationship between average traffic volume and average vehicle speed shown on the scatter plot?

• As traffic volume increases, vehicle speed increases.

• As traffic volume increases, vehicle speed decreases.

• As traffic volume increases, vehicle speed increases at first, then decreases.

• As traffic volume increases, vehicle speed decreases at first, then increases.

Ms. Ochoa recorded the age and shoe size of each student in her physical education class. The graph below shows her data. Which of the following statements about the graph is true?

• The graph shows a positive trend.

• The graph shows a negative trend.

• The graph shows a constant trend.

• The graph shows no trend.

Use the scatter plot below to answer the following question. The police department tracked the number of ticket writers and number of tickets issued for the past 8 weeks. The scatter plot shows the results. Based on the scatter plot, which statement is true?

• More ticket writers results in fewer tickets issued.

• There were 50 tickets issued every week.

• When there are 10 ticket writers, there will be 800 tickets issued.

• More ticket writers results in more tickets issued.

What is interquartile range?

• 8

• 10

• 6

• 7

The double box plot shows the amount of money spent by Sheila and Susan on their last ten shopping trips. What is the difference in the interquartile ranges?

• 20

• 32

• 12

• 34

A box plot shows the minimum value at 5, the maximum value at 95, the first quartile at 25, the third quartile at 75, and the median at 50. If another dataset has a box plot with the same median but a smaller interquartile range, what does this imply about the second dataset compared to the first?

• It has a larger range.

• It has more outliers.

• It is more consistent.

• It is less skewed.

What percentage of the data is between 90 and 140?

• 25%

• 50%

• 75%

• 100%

What percent of the total population surveyed were electrical engineers that like math?

• 33.9%

• 48.6%

• 16.5%

• 21.7%

What percentage of SUV's are driven by women?

• 56.25%

• 75%

• 83.25%

• 86.5%

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.