Question: A random variable follows the normal probability distribution with a mean of 80 and a standard deviation of 20. What is the probability that a

A random variable follows the normal probability distribution with a mean of 80 and a standard deviation of 20.

What is the probability that a randomly selected value from this population

a. is less than 90?

b. is less than 65?

c. is more than 110?

d. is more than 40?

AppendixLO1

Step by Step Solution

★★★★★

3.37 Rating (150 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock 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

Students Have Also Explored These Related Business Statistics Questions!

Q:

How does the Bitcoin blockchain reach consensus? How are digital signature useful for TX verifications? What is the structure of a Bitcoin TX? How do Script verifications work? Most common types? How...

Q:

1. The heights of 10-year-old males are normally distributed with = 55.9 inches and s = 5.7inches. (a) Draw a normal curve with the parameters labeled. Shade the region that represents the proportion...

Q:

the course name is inventory management and control don't make it too long because I have other questions to answer

Q:

Cumulative Probabilities for the Standard Normal Distribution (page 1) Cumulative Probabilities for the Standard Normal Distribution Cumulative probability Table entries represent the shaded area in...

Q:

6 of 15 A random variable follows the normal probability distribution with a mean of 134 and a standard deviation of 29. Complete parts (a) through (d) below. Click here to view page 1 of the...

Q:

Cumulative Probabilities for the Standard Normal Distribution Cumulasve probability Table entries represent the shaded area in the figure FIRST DIGIT OF 2 FIRST DIGIT OF Z 0.09 2 0.02 0.0013 0.0018...

Q:

Cumulative Probabilities for the Standard Normal Distribution (page 1) Cumulative Probabilities for the Standard Normal Distribution Cumulative probability Table entries represent the shaded area in...

Q:

business statistics BUSN 2429 14604 005 Winter 2022 (Wednesday 12:30 PM - 3:20 PM) Manpreet Kaur 03/01/22 3:36 PM Homework: Assignment 6 Question 2, 6.2.4 HW Score: 67.14%, 3.36 of 5 (Continuous...

Q:

Homework: Chapter 6 Homework Score: 1.25 of 5 pts 5 of 20 (8 complete) 26.2.4 A random variable follows the normal probability distribution with a mean of 128 and a standard deviation of 30. Complete...

Q:

Cumulative Probabilities for the Standard Normal Distribution (page 1) Cumulative Probabilities for the Standard Normal Distribution Cumulative probability Table entries represent the shaded area in...

Q:

Bowyer Inc. has conducted an analysis of overhead costs related to one of its product lines using a traditional costing system (volume-based) and an activity-based costing system. Here are its...

Q:

(Preparation of Pension Worksheet) Using the information in E20-2 prepare a pension worksheet inserting January 1, 2010, balances, showing December 31, 2010, balances, and the journal entry recording...

Q:

BE14.2 (LO 1) Swarten AG issued 600 shares of no-par ordinary shares for 8,200. Prepare Swartens journal entry if (a) the shares have no stated value, and (b) the shares have a stated value of 2 per...

Q:

Identify the four factors indicated by the Neter and Loebbecke research as having the greatest effect on the reliability of estimators.

Q:

Given the following observations from a sample, calculate the mean, the median, and themode. -4 -4

Q:

Given the following observations from a population, calculate the mean, the median, and themode. 20 15 252010 15 25 20 15

Q:

At a small arm in Boston, seven employees were asked to report their one-way commute time (in minutes) into the city. Their responses were. a. How long was the shortest commute? The longest commute?...

Q:

Riverside Incorporated makes one model of wooden canoe. Partial information for it follows: Number of Canoes Produced and Sold Total costs Variable costs Fixed costs Total costs Cost per unit...

Q:

When Crossett Corporation was organized in January, Year 1 , it immediately issued 4,300 shares of $54 par, 6 percent, cumulative oreferred stock and 11,000 shares of $9 par common stock. Its...

Q:

For Feet's Sake has two classes of stock authorized: 8%,$10 par preferred, and $1 par value common. The following transactions affect stockholders' equity during 2024, its first year of operations:...