Answered: There are 5 green, 3 red, and 2 blue…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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18. There are 5 green, 3 red, and 2 blue balls inside a jar. What is the probability of getting a red ball? B. 1/5 A. 1/4 C. 1/8 D. 3/10 19. There are 5 green, 3 red, and 2 blue balls inside a jar. What is the probability of getting a PINK ball? A. 0 B. 1 C. 1/8 D. 3/10 20. There are 15 green balls inside a jar. What is the probability of getting a green ball? A. 0 D. 3/10 B. 1 C. 1/8 21. What can you say about the mean, median and mode of a normal random distribution? A. The mean, median, and mode are the same. B. The mean is always larger than the median. C. The mode is always larger than the mean. D. The mean is located at the left, the median is at the center and the mode is at the right. 22. What is the area under the normal curve? A. Less than 1 B. 1 C. 2 D. 3

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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