Posted by **Nickie** on Sunday, January 27, 2013 at 2:10am.

Over the past 10 years, the local school district has

measured physical fitness for all high school freshmen.

During that time, the average score on a treadmill

endurance task has been μ 19.8 minutes with a

standard deviation of 7.2 minutes. Assuming that

the distribution is approximately normal, find each of

the following probabilities.

a. What is the probability of randomly selecting

a student with a treadmill time greater than

25 minutes? In symbols, p(X 25) ?

b. What is the probability of randomly selecting a

student with a time greater than 30 minutes? In

symbols, p(X 30) ?

c. If the school required a minimum time of 10 minutes

for students to pass the physical education course,

what proportion of the freshmen would fail?

## Answer This Question

## Related Questions

- math - during one year the Wagners real estate bill included $600 for local ...
- Persuasive Essay (Please, help me!) - Please, help me! I'm struggling to write ...
- english - can you check to see if i identified the verbs correctly and used the...
- speech - You are concerned about the high rate of school droupouts in your ...
- hostos - the average math sat score is 500 with a standard deviation of 100. a ...
- statistics - The average math SAT score is 500 with a standard deviation of 100...
- Statistics - A physical fitness association is including the mile run in its ...
- Math - trying to decide between parameter and statistic for the 2 questions ...
- Art - An artists creates a mural depicting a local celebration of health and ...
- ci - A researcher is interested in whether students who attend private high ...

More Related Questions