Question: the following probability function is provided: f(x) = 3.567890/x^2 for 3

the following probability function is provided: f(x) = 3.567890/x^2 for 3

a) probabilty that person studied for at least 7.3 hours?

b) what is the 55th percentile of time studied?

c) suppose hours studied is less than 7.3, but find probabiluty if studied for less than 5.0 hours?

d) the function to find the score on the exam is: 4X^2 + 67. Find the standard deviation of the exam score.

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