Statistics Quiz

Determine the mean, median, and mode for the data set below.

• mean = 4.1, median = 4, mode = 5

• mean = 4.1, median = 5, mode = 4

• mean = 4.1, median = 4.5, mode = 5

• mean = 4.1, median = 5, mode = 2

Terry is baking cupcake trays to sell. Below is a record of how many trays he sold the past week. Which of the following is true about the data set?

• The mean number of cupcakes he baked is larger than the median.

• There were no outliers in the data.

• The mean number of cupcakes is 19.

• The outlier caused the median to be more than the mean.

Using the data set from problem number 2, what is the interquartile range of the data set?

• 7

• 27.5

• 29

• 16

Which two statements are true about the box plot above?

• The IQR of the data is 5.

• The median is larger than the mean because the outlier is much larger than the other data points.

• The data points represented by the boxplot are 25, 27, 27, 30, 32, 23, 24, 26.

• The data points represented by the boxplot are 25, 27, 27, 30, 32, 23, 10, 24, 26.

Which two statements are true about the dot plot above?

• The IQR of the data is 3.

• The median is larger than the mean because the outlier is much larger than the other data points.

• The range of the data is 13.

• The mean of the data is larger than the median because all other data points are significantly smaller than the outlier.

Which of the following is true about the data sets represented by the graphs?

• In both data sets, the median is less than the mean.

• The IQR of Data Set B is greater than the IQR of Data Set A.

• The minimum value of Data Set A is smaller than the maximum value of Data Set B.

• The IQR of Data Set B is less than the IQR of Data Set A.