Find the variance of the probabilty distribution for the histogram

Q: Could you explain the difference of homogeneity of variance and heterogeneity of variance?

A: Given that  We have to explain  the difference of homogeneity of variance and heterogeneity of…

Q: The data shown below represent the repair cost for a low-impact collision in a simple random sample…

A: Given Information: The data of the repair cost for a low-impact collision is given. The sample size,…

Q: The number of people in a car that crosses a certain bridge is a random variable x. The toll on the…

A: Let us denote: X= number of persons  Y= amount of money collected The fixed charge is $2. And per…

Q: The national average for the number of students per teacher for all U.S. public schools in 15.9…

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is unknown is…

Q: Dr. Z divides her clients with depression into 2 groups. She asks Group 1 not to watch or read any…

A: Solution We have given the analysis of t test for equal variances.

Q: Professional tennis player Novak Djokovic hits the ball extremely hard. His first-serve speeds can…

A: M=Mean=112, sd=standard deviations=5

Q: archer wanted to examine the effect of a new math study skills program on se y-five students took…

A: Given that  Sample size n =25 Sample mean=85 Sample variance s2 =100 Sample standard deviation s=10…

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, µ, of…

A: Solution

Q: A researcher rcher believes that the mean earnings of top-paid actors, athletes and musicians are…

A: Here we’ve to compare 3 group means so we use ANOVA. Let A represents group of Actor, B represents…

Q: In the analysis of variance procedure (ANOVA), "factor" refers to Which? the dependent variable.…

A: In this case, we need to find the correct option for the given statement.

Q: compute the range, variance, and standard deviation for the two samples

A: The Data is given as: Atlanta(x) Salt Lake City(y) 340.1 570.1 321.6 354.6 291.6 465.6…

Q: An analysis of variance produces SSb = 40 and MSb = 20.  In this analysis, how many treatment…

A: Let k be the number of treatments Given that SSb = Between sum of squares = 40 MSb = Between mean…

Q: An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer…

A: It is given that sample mean and standard deviation are 8.159 and 0.051, respectively.The test…

Q: Define ADL or GLS: Bias versus variance?

A:

Q: A researcher is interested whether a new drug is effective in changing patients' cholesterol levels.…

A: State the hypotheses. That is, the patients in different groups have similar average cholesterol…

Q: the homogeneity of variances assumption states that the variance in the two samples must be equal?…

A: Homogeneity of variances always make about the population variance not about sample.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.