Consider the variable x time required for a college student to complete a standardized exam Suppose that for the population of students at a particular university, the distribution of x is well approximated by a normal curve with mean 45 minutes and standard deviation minutes a If 50 minutes is all...

a b We need the value of z such that P z z 090 From ...

Consider the variable x = time required for a college student to complete a standardized exam. Suppose

Question:

Consider the variable x = time required for a college student to complete a standardized exam. Suppose that for the population of students at a particular university, the of x is well approximated by a normal curve with mean 45 minutes and standard deviation = minutes.
a. If 50 minutes is allowed for the exam, what proportion of students at this university would be unable to finish in the allotted time?
b. How much time should be allowed for the exam if you wanted 90% of the students taking the test to be able to finish in the allotted time?
c. How much time is required for the fastest 25% of all students to complete the exam? Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...