Question 8 • Mathematics for Data and Financial Literacy
Brantley tracked his vacation expenses for the past five trips he took. He noticed that the range of his trip expenses was $ 1,200 The standard deviation of the expenses was $400 , and the IQR was $700 Based on these measures of spread, which of the following statements is true?
Answer
A
The majority of Brantley's trip expenses were less than 400 dollars. - no response given
B
The average amount Brantley spent on his trips was 1 dollars comma 200. - incorrect
C
The middle 50 percent of Brantley's trip expenses were all below 700 dollars. - no response given
D
Brantley's highest trip expense was 1 dollars comma 200 more than his lowest expense. - not selected, this is the correct answer