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asser speeds Freeway (I-5) in California is nearly normal with a mean of 72.5 miles/hour and a standard deviation of 4.7 miles/hour. Use this information to answer the following questions. Round your answers to 2 decimal places. a) What percent of passenger vehicles travel slower than 80 miles/hour? 94.77 b) What percent of passenger vehicles travel between 60 and 80 miles/hour? 94.0700 c) How fast do the fastest 5.5% of passenger vehicles travel? 00.0106 d) The speed limit on this stretch of the I-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the l-5.

asser speeds Freeway (I-5) in California is nearly normal with a mean of 72.5 miles/hour and a standard deviation of 4.7 miles/hour. Use this information to answer the following questions. Round your answers to 2 decimal places. a) What percent of passenger vehicles travel slower than 80 miles/hour? 94.77 b) What percent of passenger vehicles travel between 60 and 80 miles/hour? 94.0700 c) How fast do the fastest 5.5% of passenger vehicles travel? 00.0106 d) The speed limit on this stretch of the I-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the l-5.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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I only need help with parts c and d. Thank you!!!

3.12 Speeding on the l-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.5 miles/hour and a standard deviation of 4.7 miles/hour. Úse this information to answer the following questions. Round your answers to 2 decimal places. a) What percent of passenger vehicles travel slower than 80 miles/hour? 94.77 b) What percent of passenger vehicles travel between 60 and 80 miles/hour? 94.0700 c) How fast do the fastest 5.5% of passenger vehicles travel? 00.0106 d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the l-5.
Transcribed Image Text:3.12 Speeding on the l-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.5 miles/hour and a standard deviation of 4.7 miles/hour. Úse this information to answer the following questions. Round your answers to 2 decimal places. a) What percent of passenger vehicles travel slower than 80 miles/hour? 94.77 b) What percent of passenger vehicles travel between 60 and 80 miles/hour? 94.0700 c) How fast do the fastest 5.5% of passenger vehicles travel? 00.0106 d) The speed limit on this stretch of the l-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the l-5.
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