Question: this problem was really tough for me, any help would be amazing! thank you in advance!! 3 Exercise 6-21 Algo 7.5 Let X be normally

this problem was really tough for me, any help would be amazing! thank you in advance!!

3 Exercise 6-21 Algo 7.5 Let X be normally distributed with mean / = 142 and standard deviation o= 28. [You may find it useful to reference the z table.] points a. Find P(X s 100). (Round "z" value to 2 decimal places and final answer to 4 decimal places.) Book P(X = 100) Hint References b. Find P(95 s X s110). (Round "z" value to 2 decimal places and final answer to 4 decimal places.) P(95 s X = 110) c. Find x such that P(X s x) = 0.400. (Round "z" value and final answer to 3 decimal places.) d. Find x such that P(X > x) = 0.800. (Round "z" value and final answer to 3 decimal places.) x

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