Homework Help is Here – Start Your Trial Now!
Math
Probability
11. An agency is conducting performance tests on different brands of skateboards. Tests show that the pressure, in pounds per square inch, required to break the boards is normally distributed with a mean of 54.7 and a standard deviation of 6.2. a. What percent of the boards have breaking pressures between 50 and 60? b. What is the probability that any board will require at least a pressure of 70 to break? c. In what range centered on the mean will 80% of the data lie?

11. An agency is conducting performance tests on different brands of skateboards. Tests show that the pressure, in pounds per square inch, required to break the boards is normally distributed with a mean of 54.7 and a standard deviation of 6.2. a. What percent of the boards have breaking pressures between 50 and 60? b. What is the probability that any board will require at least a pressure of 70 to break? c. In what range centered on the mean will 80% of the data lie?

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
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
11. An agency is conducting performance tests on different brands of skateboards. Tests show that the pressure, in pounds per square inch, required to break the boards is normally distributed with a mean of 54.7 and a standard deviation of 6.2. a. What percent of the boards have breaking pressures between 50 and 60? b. What is the probability that any board will require at least a pressure of 70 to break? c. In what range centered on the mean will 80% of the data lie?
Transcribed Image Text:11. An agency is conducting performance tests on different brands of skateboards. Tests show that the pressure, in pounds per square inch, required to break the boards is normally distributed with a mean of 54.7 and a standard deviation of 6.2. a. What percent of the boards have breaking pressures between 50 and 60? b. What is the probability that any board will require at least a pressure of 70 to break? c. In what range centered on the mean will 80% of the data lie?
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
SEE MORE TEXTBOOKS