miles Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 63 . The highway patrol's policy is to issue hour miles tickets for cars with speeds exceeding 75 hour . The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds of cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. miles hour

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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miles
Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 63
-. The highway patrol's policy is to issue
hour
miles
tickets for cars with speeds exceeding 75
. The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds of
hour
cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
miles
hour
Transcribed Image Text:miles Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 63 -. The highway patrol's policy is to issue hour miles tickets for cars with speeds exceeding 75 . The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds of hour cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. miles hour
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