This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Assume that x is a normally distributed random variable with a mean of 70 and a standard deviation ... (Read 63 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
on: Jul 24, 2018
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
Reply #1 on: Jul 24, 2018
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
YES! Correct, THANKS for helping me on my review

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
The endocrine glands of the endocrine system are distributed throughout the body. The endocrine glands of the endocrine system are distributed throughout the body.
How to solve a linear system when the variable is in the denominator position (Question 1 of 2) How to solve a linear system when the variable is in the denominator position (Question 1 of 2)
Generation of diversity by variable V-J joining mechanisms Generation of diversity by variable V-J joining mechanisms
Variable and absorption costing, explaining operating-income differences. Variable and absorption costing, explaining operating-income differences.
Video: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library