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

Author Question: Assume that x is a normally distributed random variable with a mean of 70 and a standard deviation ... (Read 76 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
Assume that x is a normally distributed random variable with a mean of 70 and a standard deviation of 10 Find P(x < 48).

Question 2

Assume that x is a normally distributed random variable with a mean of 70 and a standard deviation of 10 Find P(48 < x < 88).



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

princessflame2016

  • Sr. Member
  • ****
  • Posts: 298
Answer to Question 1

P(x < 48) = P(z < -2.20) = 0.5000  0.4861 = 0.0139

Answer to Question 2

P(48 < x < 88) = P(-2.20 < z < 1.80) = 0.4861 + 0.4641 = 0.9502




geodog55

  • Member
  • Posts: 530
Reply 2 on: Jul 24, 2018
Gracias!


raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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.

For a complete list of videos, visit our video library