Mathematics
Answer to this question using the 68-95-99.7 rule

Question Description

Help me study for my Mathematics class. I’m stuck and don’t understand.

Suppose the mean speed is 60mph with a standard deviation of 5mph. What is the speed of 68% of the cars, 95% of the cars and 99.7% of the cars.  Show a symmetrical bell-shaped distribution in the answer and show all work.

Student has agreed that all tutoring, explanations, and answers provided by the tutor will be used to help in the learning process and in accordance with Studypool's honor code & terms of service.

Final Answer

mu -1 sigma to mu+1 sigma

Speed of the car for 68% is 60-5 =55 to 60+5 =65 mph

mu -2 sigma to mu+2 sigma

Speed of the car for 95% is 60-2*5 =50 to 60+2*5 =70 mph

mu -3 sigma to mu+3 sigma

Speed of the car for 99.7% is 60-3*5 =45 to 60+3*5 =750 mph



madhavant (2757)
Duke University

Anonymous
Top quality work from this tutor! I’ll be back!

Anonymous
Heard about Studypool for a while and finally tried it. Glad I did caus this was really helpful.

Anonymous
Thank you! Reasonably priced given the quality

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4