For the standard normal distribution, find the following probabilities. (a) Pr(0 leq Z leq 2.5)

nicekikah

nicekikah

Answered question

2021-01-28

For the standard normal distribution, find the following probabilities.
(a) Pr(0Z2.5)

Answer & Explanation

broliY

broliY

Skilled2021-01-29Added 97 answers

Consider the probability P(0<z<2.5),
The probability that the z lies between 0 and 2.5 is equal to the area that lies under the curve from 0 and 2.5.
To find the probability look in the column headed by z for the value of 2.5 in appendix C.
In the column headed by A across 2.5 the corresponding value is 0.4938.
Thus the probability P(0<z<2.5) is A2.5.
So the value of A2.5 from the appendix is 0.4938.
Hence the value of P(0z2.5) is 0.4938.

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