Find the standard z-score such that 80 of the distribution is to the left of this ...

Author Question: Find the standard z-score such that 80 of the distribution is to the left of this ... (Read 49 times)

beccaep

Hero Member
Posts: 535

on: Jul 24, 2018

Find the standard z-score such that 80 of the distribution is to the left of this value.

Question 2

Find the area under the standard normal curve between z = 0.25 and z = 2.75.

shaikhs

Sr. Member
Posts: 312

Reply #1 on: Jul 24, 2018

Answer to Question 1

z = 0.84

Answer to Question 2

P(0.25 < z < 2.75) = 0.4970 0.0897 = 0.4073

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beccaep

Hero Member
Posts: 535

Reply #2 on: Jul 24, 2018

Both answers were spot on, thank you once again

shaikhs

Sr. Member
Posts: 312

Reply #3 on: Jul 24, 2018

Great! Please up vote

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