68% of statistics Mean 95% of statistics 99.7% of statistics Mean Mean 1 st. 3 st dev 2 st. dev below dev 2 st dev above 3 st. dev below above below above number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania mal distribution. This distribution has a mean of 64 potholes, and a standard deviatio holes. Using the Empirical Rule, what is the approximate percentage of 1-mile long roa potholes numbering between 55 potholes and 73 potholes? % 1 st. dev

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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68% of
statistics
Mean
95% of
statistics
99.7% of
statistics
A
Mean
Mean
1 st.
1 st.
2 st. dev
below
2 st dev
above
3 st. dev
below
3 st dev
above
dev
dev
below
above
The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a
Normal distribution. This distribution has a mean of 64 potholes, and a standard deviation of 9
potholes. Using the Empirical Rule, what is the approximate percentage of 1-mile long roadways
with potholes numbering between 55 potholes and 73 potholes?
%
Transcribed Image Text:68% of statistics Mean 95% of statistics 99.7% of statistics A Mean Mean 1 st. 1 st. 2 st. dev below 2 st dev above 3 st. dev below 3 st dev above dev dev below above The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribution has a mean of 64 potholes, and a standard deviation of 9 potholes. Using the Empirical Rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 55 potholes and 73 potholes? %
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