just make sure it's organized

Exam Scores An instructor gives a 100-point examination in which the grades are normally distributed. The mean is 60 and the standard deviation is 5. If there are 5% 4's and 5% F's, 15% B's and 15% D's, and 60% C's, find the scores that divide the distribution into those categories. Round the cutoff scores to the nearest whole number. Round intermediate Z-value calculations to 2 decimal places. A X 5 C: D FInternet Users U.5 intemet users spend an average of 133 hours a week online. If 99% of users spend between 94 and 2'12 hours a week, what is the probability that a randomly selected user is online less than 1'? hours a week? Assume that intemet usage follows a normal distribution. Round the nal answer to at least four decimal places and intermediate 2 1.ralue calculaljons to two decimal places. 111e probability of a randomly selected person being online less than 17" hours per week is D . Police Academy Acceptance Exams In order to qualifyr for a police academy, applicants are given a test of physical tness. The scores are normally distributed with a mean of SE and a standard deviation of 9. If only the top 19% of the applicants are selectedr find the cutoff score. Use a graphing calculator and round 1e answer to the nearest whole number. The cutoff score for the top 19% of the scores is D. Qualifying Test Scores To qualify for a medical sludy, an applicant must have a systolic blood pressure in the 55% ofthe middle mnge. If the systolic blood pressure is normally distributed with a mean of 120 and a standard deviation of 5, nd the upper and lower limits of blood pressure a person must have to qualify for the study. Round nal answers to one decimal place. Applicants must have a lower blood pressure limit of D and an upper blood pressure limit of [J to qualify for the study. Reading Improvement Program To help students improve their reading, a school district decides to implement a reading proglam. It is to be administered to the bottom 65$ of Hie students in the district, based on the scores on a reading achievement exam. If the average score for the students in the district is 1213. nd the cutoff score that will make a student eligible for the proglam. "the standard deviation is [7. Assume the 1.i'ariatnde is normallyr distributed. Use a graphing calculator and round the answer to the nearest whole number. 111e cutoff score for the bottom 6% ofthe scores is D. \fItemized Charitable Contributions 111e average charitable contribuljon itemized per income tax return in Pennsylvania is $ Ell. Suppose that the distribution of conb'ibutions is normal with a standard deviation of $108. Find the limits for the middle 53% of contributions. Use a glaphing calculator and round the answers to two decimal places. 111e limits for the middle 53% of contributions are $El and 5D. Cat Behavior A report stated that the average number of times a cat returns to its food bowl during the day is 35. Assuming the variable is norTrIallyur distributed with a standard deviation of 3, what is the [aritrloabilitr-r that a cat would return to its dish between 32 and 3? times a day? Use a graphing calculator. Round the answer to four decimal places. Hazaxasr} = [j Price of Gasoline The average retail price of gasoline (all types] for line rst half cf ZEUS Iwas 212}. cents. What would the standard deuialjen have to be in order for a 15% [irritabilityr that a gallon of gas costs less than $1_3? Round z-value calculations to two decimal places and final answer to the nearest cent. Standard deviation is D cents