[Answered] For a normal distribution with = 500 and = 100, find the following values: a. What X value ...

This topic contains a solution. Click here to go to the answer

Author Question: For a normal distribution with = 500 and = 100, find the following values: a. What X value ... (Read 43 times)

chads108

Hero Member
Posts: 507

on: Jun 20, 2018

For a normal distribution with = 500 and = 100, find the following values:

a. What X value separates the highest 10 of the distribution from the rest of the scores?
b. What X values form the boundaries for the middle 60 of the distribution?
c. What is the probability of randomly selecting a score greater than X = 475?

Question 2

For a normal distribution with a mean of = 100 and a standard deviation of = 10, find each of the following probabilities:

a. p(X> 102) c. p(X< 130)
b. p(X< 85) d. p(95

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

IAPPLET

Sr. Member
Posts: 333

Reply #1 on: Jun 20, 2018

Answer to Question 1

a. z= 1.28 X = 628
b. z = 0.84 X = 416 to 584
c. z = 0.25 p = 0.5987

Answer to Question 2

a. z = 0.20 p = 0.4207
b. z = 1.50 p = 0.0668
c. z = 3.00 p = 0.9987
d. z = 0.50 p = 0.3830

chads108

Hero Member
Posts: 507

Reply #2 on: Jun 20, 2018

Thank you!

IAPPLET

Sr. Member
Posts: 333

Reply #3 on: Jun 20, 2018

Happy to help

« previous next »

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.