a) How many standard deviations from the mean would a car going the speed limit be? b) Which would be more unusual, a car traveling 35 mph or one going 8 mph?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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John Beale of Stanford, California, recorded the speeds of cars
driving past his house, where the speed limit read 20 mph. The
mean of 100 representative readings was 23.76 mph, with a
standard deviation of 3.53 mph.
a) How many standard deviations from the mean would a car
going the speed limit be?
b) Which would be more unusual, a car traveling 35 mph or one
going 8 mph?
a) A car traveling at the speed limit is
from the mean.
(Round to two decimal places as needed.)
b) Choose the correct answer below and fill in the answer
box(es) to complete your choice.
(Round to two decimal places as needed.)
OA.
B.
standard deviations
O C.
The car traveling 35 mph is more unusual. It is
standard deviations from the mean, while the car
traveling 8 mph is standard deviations from the
mean.
The car traveling 8 mph is more unusual. It is
standard deviations from the mean, while the car
traveling 35 mph is standard deviations from the
mean.
Both cars are equally unusual. Both cars are
standard deviations from the mean.
Transcribed Image Text:John Beale of Stanford, California, recorded the speeds of cars driving past his house, where the speed limit read 20 mph. The mean of 100 representative readings was 23.76 mph, with a standard deviation of 3.53 mph. a) How many standard deviations from the mean would a car going the speed limit be? b) Which would be more unusual, a car traveling 35 mph or one going 8 mph? a) A car traveling at the speed limit is from the mean. (Round to two decimal places as needed.) b) Choose the correct answer below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) OA. B. standard deviations O C. The car traveling 35 mph is more unusual. It is standard deviations from the mean, while the car traveling 8 mph is standard deviations from the mean. The car traveling 8 mph is more unusual. It is standard deviations from the mean, while the car traveling 35 mph is standard deviations from the mean. Both cars are equally unusual. Both cars are standard deviations from the mean.
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