Answered: Five number summary 57 67 68 69 72…

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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Five number summary

57 67

68 69

72 75

76 79

80 81

83 85

92 94

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Five number summary 57 67 68 69 72 75 76 79 80 81 83 85 92 94 Mean Range Mid-Range Standard Deviation

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Five number summary

57 67

68 69

72 75

76 79

80 81

83 85

92 94

(Section # 3)

4. Shade under the curve where

5. Find a table percentage for z = 1.2

Test # 3 Scores had a Mean of 82 and a Standard Deviation of 5

6 . Find a z score for x = 81 and x = 68

z– score for 81 z– score for 68

7. Find the percent of scores that were above 86. Z score for 86

Table score for 86

Shade the desired section under the Standard Normal curve. Where the scores are greater than 86

Find the percent of scores that were above 86.

8. Find the percent of scores between 68 and 81

9. Find the percent of scores between 87 and 98

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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