Example 25. The quarterly profits (in lakhs of Rs.) of three companies are Calculate their standard deviation and coefficient of variation which company is more solid ? given below. Quarters Соmpany A Соmpany B Jan-March 9.5 15.5 Аpril-June 13.7 21.2 July-September 10.4 23.4 October-December 8.6 18.8

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A: In the theory of probability and statistics there is a inverse relationship between the margin of…

Q: The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to be…

A: P=0.011-P=1-0.01=0.99n=1100

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A: We know that  Mean = sum of all observations /total number of observations

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A: Solution

Q: What was Hasan's GPA (weighted mean) rounded to 1 d.p. ? 022 072 3.3 02.1

A: It is given that the table represents the Hasan's CW grades for semester-2.

Q: Suppose that the amount of time per day that American adults spend on their mobile devices is…

A: GivenMean(μ)=229standard deviation(σ)=57

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A:

Q: In a population of exam scores, a score of X = 88 corresponds to z = 2 and a score of X = 79…

A: From the provided information, A score of X = 88 corresponds to z = 2 A score of X = 79 corresponds…

Q: ) 5.2°F per month

A:

Q: How do I write a function in R Studio to compute mean, variance, and standard deviation for a pmf?

A: Let us take a small dataset, we will find the mean, standard deviation and variance in RStudio a…

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A: Linear regression is the relationship between a scalar response variable and one or more explanatory…

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A: The scores of a dependent variable can be summarized using R square Depicts the level of variation…

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A:

Q: Example 5 The highlights of the Railway budget for 1983-84 are as follows. The actual gross traffic…

A: Below is a summary of the given data and also a presentation of the data in a table format.Data…

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 4. During the course of a semester, 10 students in Mr. Smith's class took three exams. Use Microsoft…

A: Given, Test1 Test2 Test3 90 94 95 65 75 90 51 77 91 88 84 93 72 88 92 75 84 90 60…

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Q: According to the regression equation, for a student who gets 85 on the midterm (one standard…

A: For midterm, it is given that Mean1 = 75, SD1 = 10 For final, it is given that Mean2 = 75, SD2 = 10…

Q: If the actual sales for the years 2017, 2018, 2019, and 2020 were 1000, 2000, 3000, and 4000…

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Q: Pax World Balanced is a highly respected, socially responsible mutual fund of stocks and bonds.…

A: Given that, for Pax World Balanced : x¯ = 9.70% and s=13.95% and for Vanguard Balanced Index: x¯ =…

Q: true or false: If a 90% CI for the difference between two means is calculated to be [ 6.2, 9.6] then…

A: It is given that the 90% confidence interval for the difference between two means is (6.2, 9.6).