Log In Start studying!

Select your language

Suggested languages for you:
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q. 50

Introductory Statistics
Found in: Page 387
Introductory Statistics

Introductory Statistics

Book edition OER 2018
Author(s) Barbara Illowsky, Susan Dean
Pages 902 pages
ISBN 9781938168208

Answers without the blur.

Just sign up for free and you're in.


Short Answer

Use the following information to answer the next four exercises:

X ~ N(54, 8)

Find the probability that x > 56.

The probability that x>56 is 0.4013

See the step by step solution

Step by Step Solution

Step 1: Given Information 

Given in the question that,

X ~ N(54, 8)

We have to find the probability that x>56

Step 2: Explanation 

According to the given information, we can compute the probability as follow:





Step 3: Apply the probability rule 

Apply the probability rule to compute the value of P(Z0.25)





Cumulative probability of P(0Z0.25):



Step 4: Place the value 

Place the value of P(Z2.5) in the above formula




Recommended explanations on Math Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.