The grade point averages (GPAs) of a large population of college students are approximately normally distributed...

The grade point averages (GPAs) of a large population of college students are approximately normally distributed with mean 2.5 and standard deviation 0.7. If students possessing a GPA less than 1.75 are dropped from college, what percentage of the students will be dropped? (Round your answer to two decimal places.)

?? %

The width of bolts of fabric is normally distributed with mean 950 mm (millimeters) and standard deviation 10 mm.

(a) What is the probability that a randomly chosen bolt has a width between 943 and 959 mm? (Round your answer to four decimal places.)

What is the probability that a randomly chosen bolt has a width between 943 and 959 mm? (Round your answer to four decimal places.)

(b)

What is the appropriate value for C such that a randomly chosen bolt has a width less than C with probability 0.8749? (Round your answer to two decimal places.)

C =

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orchestra answered 1 year ago

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