Mathematics, 18.10.2019 04:00 davisearron

Explain what the following correlation tell you about two sets of data

Answers: 3

Show answers

Answers

Answer from: ltorline123

a. r = 0.4. The correlation is positive. It's a weak association

b. r = -0.96 The correlation is negative. It is a very strong association

c. r = -0.02 The correlation is negative. It is a very weak association

d. r = 1. The correlation is positive. It's a perfect association

e. r = 0.86. The correlation is positive. It is a very strong association

Step-by-step explanation:

r is known as Pearson's linear correlation coefficient measures how strong the correlation between two variables is.

It is a positive correlation

A positive correlation means that when the variable x increases the variable y also increases.

$-1\leq r$ It is a negative correlation

A positive correlation means that when the variable x increases the variable y decreases.

r = 0 means there is no correlation between the variables.

a. r = 0.4. The correlation is positive. It's a weak association

b. r = -0.96 The correlation is negative. It is a very strong association

c. r = -0.02 The correlation is negative. It is a very weak association

d. r = 1. The correlation is positive. It's a perfect association

e. r = 0.86. The correlation is positive. It is a very strong association

Explain what the following correlation tell you about two sets of data

Answer from: hooplikeapro

Part a)

Solution;

A correlation coefficient of 0.4 implies a relatively weak positive association between two sets of data. There is a notable small increment in one data set as the other increases.

Part b)

Solution;

A correlation coefficient of -0.96 implies a strong negative association between two sets of data. An increase in the values of one data set amounts to a decrease in the values of the other data set by approximately the same magnitude.

Part c)

Solution;

A correlation coefficient of -0.02 implies a weak negative association between two sets of data. An increase in the values of one data set amounts to a negligible decrease in the values of the other data set.

Part d)

Solution;

A correlation coefficient of 1.0 implies a perfect positive association between two sets of data. An increase in the values of one data set amounts to an increase in the values of the other data set by exactly the same magnitude. A scatter plot would reveal that the line y =x fits the data well.

Part e)

Solution;

A correlation coefficient of 0.86 implies a strong positive association between two sets of data. An increase in the values of one data set amounts to an increase in the values of the other data set by approximately the same magnitude.

Step-by-step explanation:

Correlation coefficient measures the degree of association between two variables or data sets. Correlation coefficients can be positive or negative and may imply weak or strong association between two data sets.

A correlation coefficient of less than 5 is implies a weak association while a value greater than or equal to 5 implies a strong association. Finally, a correlation of 1.0 implies perfect association.

Answer from: Quest

What are the options

Answer from: Quest

where are the choices?

Another question on Mathematics

Mathematics, 21.06.2019 18:00

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

Answers: 2

Answer

Mathematics, 21.06.2019 20:30

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.

Answers: 1

Answer

Mathematics, 21.06.2019 23:00

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.

Answers: 1

Answer

Mathematics, 21.06.2019 23:00

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Answers: 2

Answer

You know the right answer?

Explain what the following correlation tell you about two sets of data
...

Questions