Answered: Suppose a researcher rolls two dice…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...

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Question 1

Suppose a researcher rolls two dice (each contains six sides). What is the probability of the dice adding to a total of 8?

Group of answer choices

5/36

1/36

1/18

none of the above

Question 2

As a research analyst, your boss has asked that you develop a sampling plan to determine how many manufactured parts at your company are defective. In a couple of sentences, state your plan and how you would put it into action.

Question 3

Determine the probabilities for the following:

P(z>0)

P(z>1.2)

P(z<-0.56)

Question 4

Most graduate schools of business require applicants for admission to take the Graduate Management Admission Council’s GMAT examination. Scores on the GMAT are roughly normally distributed with a mean of 527 and a standard deviation of 112.

What is the probability of an individual scoring above 500 on the GMAT? (Hint: Convert to Z)

What is the probability of an individual scoring below 500 on the GMAT?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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