The price of an apple at a grocery store and the price of a peach at a farmers' market

Jaya Legge
2021-09-22
Answered

For each topic, decide how a scatterplot of the data would likely look. Explain your reasoning.

The price of an apple at a grocery store and the price of a peach at a farmers' market

The price of an apple at a grocery store and the price of a peach at a farmers' market

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Answered 2021-09-23
Author has **106** answers

Given variables:
price of an apple at a grocery store price of a peach at a farmers

asked 2021-03-02

1) In what way is the point unusual? Does it have high leverage, a large residual, or both?

2) Do you think that point is an influential point?

3) If that point were removed, would the correlation be- come stronger or weaker? Explain.

4) If that point were removed, would the slope of the re- gression line increase or decrease? Explain

asked 2021-11-29

Suppose that the random variable X is defined as $X=0.6{X}_{1}+0.3{X}_{2}+0.1{X}_{3}$ , where the probability distributions of the independent random variables $X}_{1},{X}_{2},{\textstyle \phantom{\rule{1em}{0ex}}}\text{and}{\textstyle \phantom{\rule{1em}{0ex}}}{X}_{3$ are

$${f}_{X1}(x)=\left(\begin{array}{c}5\\ x\end{array}\right){0.1}^{x}\times {0.9}^{5-x}$$

$${f}_{X2}(x)=\left(\begin{array}{c}5\\ x\end{array}\right){0.4}^{x}\times {0.6}^{5-x}$$

$${f}_{X3}(3)=\left(\begin{array}{c}5\\ x\end{array}\right){0.6}^{x}\times {0.4}^{5-x}$$

$x=0,1,2,3,4,5$

a) Evaluate the mean of X.

b) Evaluate the variance of X.

a) Evaluate the mean of X.

b) Evaluate the variance of X.

asked 2021-06-18

Students and teachers at a school were polled to see if they were in favor of extending the parking lot into part of the athletic fields. The results of the poll are shown in the two-way table. Which of the following statements is false? A. Thirty-nine students were polled in all. B. Fourteen teachers were polled in all. C. Twenty-three students are not in favor of extending the parking lot. D. Nine teachers are in favor of extending the parking lot. In FavorNot in Favor Students1623 Teachers914

asked 2021-09-18

A group of children and adults were polled about whether they watch a particular TV show. The survey results, showing the joint relative frequencies and marginal relative frequencies, are shown in the two-way table. What is the value of x?
YesNoTotal Children0.30.40.7 Adults0.25x0.3 Total0.550.451

asked 2021-12-07

For two data sets, X and Y, if the $C{V}_{x}>C{V}_{y}$ then

- The dataset X is more consistent than Y

- The dataset X an Y are equally consistent

- There is no cinsistency between X and Y

- The dataset Y is more consistent than X

- The dataset X is more consistent than Y

- The dataset X an Y are equally consistent

- There is no cinsistency between X and Y

- The dataset Y is more consistent than X

asked 2021-11-27

The following table gives the scores of 30 students in a mathematics examination:

$$\begin{array}{|cccccc|}\hline Scores& 90-99& 80-89& 70-79& 60-69& 50-59\\ Students& 4& 8& 12& 4& 2\\ \hline\end{array}$$

Find the mean and the standard deviation of the distribution of the given data.

Find the mean and the standard deviation of the distribution of the given data.

asked 2021-12-04

An engineering company has four openings and the applicant pool consists of 6 database administrators and eight network engineers. All are equally qualified so the hiring will be done randomly. The hiring committee consists of 4 women and 4 men.

a. If one person on the hiring committee is chosen at random to draw the names out of a hat, what is the probability that the person drawing the names is a woman.

b. How many ways can the group who are to be hired be formed if they are no restrictions on composition?

c. How many ways can 3 database administrators be chosen?

a. If one person on the hiring committee is chosen at random to draw the names out of a hat, what is the probability that the person drawing the names is a woman.

b. How many ways can the group who are to be hired be formed if they are no restrictions on composition?

c. How many ways can 3 database administrators be chosen?