Answered: A. Read and answer the following…

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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A. Read and answer the following questions. Write your answers on a sheet of paper.

1. Find the z- scores(s) of the standard normal distribution corresponding to an area of 0.4177.

2. Find the z- score for the standard normal curve

a. with an area of 0.119 to its left;

b. with an area of 0.7517 to its right;

c. with an area of 0.9846 to its left; and

d. with an area of 0.78962 to its right.

B. Reflect Upon. Suppose you have been told that your percentile rank in a national examination is 50^th. What does this mean for you? Are you satisfied with your score? If not, how do you plan to improve?

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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