Question: Suppose x is a normally distributed random variable with mean 100 and standard deviation 8. Draw a rough graph of the distribution of x. Locate

Suppose x is a normally distributed random variable with mean 100 and standard deviation 8. Draw a rough graph of the distribution of x. Locate m and the interval μ ± 2σ on the graph. Find the following probabilities:
a. P(μ – 2σ ≤ x ≤ μ + 2σ) .9544
b. P(x ≥ μ + 2σ)
c. P(x ≤ 92)
d. P(92 ≤ x ≤ 116)
e. P(92 ≤ x ≤ 96)
f. P(76 ≤ x ≤ 124)

Step by Step Solution

3.37 Rating (166 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

Using Table IV Appendix A a P 2 x 2 P 2 z 2 P 2 z 0 ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

456-M-S-C-R-V (301).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!