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  3. a) assume that x has a normal distribution with t

A) Assume that x has a normal distribution with the specified mean and standard deviation. Find the...

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Question

Basic Math

A)

Assume that x has a normal distribution with the specifiedmean and standard deviation. Find the indicated probability.

mean=101; standard deviation= 11
P(x > or = 120) = ?

B)

mean=2.6; standard deviation= 0.38
P(x > or = 2) = ?

C) Find z such that 2.6% of the standard normal curve lies tothe left of z.

z= ?

D) Find z such that 4.2% of the standard normal curve lies tothe right of z

z= ?

E) Find the z value such that 96% of the standard normal curvelies between -z and z

z = ?


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