PLEASE READ ALL . calculus help please ? need sub parts a , c , and d . only three so DONT DO THE FIRST THREE AND SAY "oh well post another question" i only need a, c , d PLEASE Scores on a 100-point final exam administered to all applied calculus classes at a large university are normally distributed with a mean of 73.1 and a standard deviation of 6.3.(a) What percentage of students taking the test had scores between 60 and 80? (Round your answer to two decimal places.)89.03*%(b) What is the probability that a randomly chosen student earned an "A" (90 or above) on the test? (Round your answer to 4 decimal places.)0.0035(c) At what score was the rate of change of the probability density function for the scores a maximum?73.1X(d) According to the Empirical Rule, approximately what percentage of scores were above 79.4?32*%(e) According to the Empirical Rule, the lowest 2.5% of the scores were below 60.5

Given that, The random variable X is the scores on a 100-point final exam administered to all…

Scores on a 100-point final exam administered to all applied calculus classes at a large university are normally distributed with a mean of 73.1 and a standard deviation of 6.3. (a) What percentage of students taking the test had scores between 60 and 80? (Round your answer to two decimal places.) 69.03 x % (b)What is the probability that a randomly chosen student earned an "A" (90 or above) on the test? (Round your answer to 4 decimal places.) 0.0035 (c) At what score was the rate of change of the probability density function for the scores a maximum? 73.1 (d) According to the Empirical Rule, approximately what percentage of scores were above 79.4? 32

Scores on a 100-point final exam administered to all applied calculus classes at a large university are normally distributed with a mean of 73.1 and a standard deviation of 6.3. (a) What percentage of students taking the test had scores between 60 and 80? (Round your answer to two decimal places.) 69.03 x % (b)What is the probability that a randomly chosen student earned an "A" (90 or above) on the test? (Round your answer to 4 decimal places.) 0.0035 (c) At what score was the rate of change of the probability density function for the scores a maximum? 73.1 (d) According to the Empirical Rule, approximately what percentage of scores were above 79.4? 32

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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PLEASE READ ALL . calculus help please ? need sub parts a , c , and d . only three so DONT DO THE FIRST THREE AND SAY "oh well post another question" i only need a, c , d PLEASE

Scores on a 100-point final exam administered to all applied calculus classes at a large university are normally distributed with a mean of 73.1 and a standard deviation of 6.3.
(a) What percentage of students taking the test had scores between 60 and 80? (Round your answer to two decimal places.)
89.03
*%
(b) What is the probability that a randomly chosen student earned an "A" (90 or above) on the test? (Round your answer to 4 decimal places.)
0.0035
(c) At what score was the rate of change of the probability density function for the scores a maximum?
73.1
X
(d) According to the Empirical Rule, approximately what percentage of scores were above 79.4?
32
*%
(e) According to the Empirical Rule, the lowest 2.5% of the scores were below 60.5

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