10
QuizMultiple Choice
Describing Data on Dot Plots
Question 10 • Concepts in Probability and Statistics A
The dot plot shows the birth year of everyone who works at Sam’s office. The youngest person who works there was born in 1987. Sam described the data as having a spread from 1965 to 1987, four gaps, a peak at 1984, and a center of 1978. Where did Sam make an error?Birth Year of Employees
Answer
A
The spread is from 1966 to 1987.B
There are 5 gaps.C
The peak is at 1985.D
The center is at 1977.