Question: Please use R programming to answer follow questions: Given that X has a normal distribution with mean 18 and standard deviation 2.5, find a. P(X

Please use R programming to answer follow questions:

Given that X has a normal distribution with mean 18 and standard deviation 2.5, find

a. P(X < 15);

b. the value k such that P(X < k) = 0.2236;

c. the value k such that P(X > k) = 0.1814;

d. P(17 < X < 21).

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