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3 years ago

BRAINLY FOR CORRECT ANSWER FOR ALL THREE MATH QUESTIONS <3 thank you <3

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

8 0

Question 1

A

Question 2

D

Question 3

A

Hope this helps i hope you get a 100

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A study finds a correlation coefficient of r = .32. This number gives you information about which of the following? Group of ans

Mrac [35]

Answer:

Strength and direction of the relationship.

Step-by-step explanation:

Given that A study finds a correlation coefficient of r = .32. This number gives you information about which of the following?

Group of answer choices Type of relationship and importance Statistical validity and external validity Statistical significance and effect size Strength and direction of the relationship.

We know that correlation coefficient represented by r is a measure of association between two variables. r can lie between -1 and 1. While negative correlation suggests inverse relationship positive a positive association.

0 correlation means the two variables are independent.

If nearer to 0, it represents weak correlation and nearer to 1 than 0 represents strong correlation.

Here r =0.32 a weak positive correlation

r represents

Strength and direction of the relationship.

6 0

2 years ago

The following annual expenses for car insurance, vacation, and home repairs for the Clark family are $1130, $700, and $468, resp

eimsori [14]

Answer:

A) $192

Step-by-step explanation:

Given:

Yearly expense of Car insurance = $1130

Yearly expense of Vacation = $700

Yearly expense of home repairs = $468

we need to find the monthly allowance of Clark family.

First we find the total annual expense of Clark family.

Total Annual expense is equal to sum of Yearly expense of Car insurance and Yearly expense of Vacation and Yearly expense of home repairs.

Framing in equation form we get;

Total annual expense = $\$1130 + \$700+\$468 = \$2298$

Now we know that;

Number of months in a year = 12 months.

Total Monthly allowance will be equal to Total annual expense divided by Number of months in year.

Framing the equation we get;

Total Monthly allowance = $\frac{\$2298}{12}= \$191.5$

Rounding to nearest dollar we get;

Total Monthly allowance of Clark family is $192.

6 0

3 years ago

Read 2 more answers

How to solve this- <br>(2y-1)^2-4(2y-1) +4<br><br><br>

Tems11 [23]

Step by Step Solution
More Icon
STEP
1
:
Equation at the end of step 1

(((2y - 1)2) - 4 • (2y - 1)) + 4
STEP
2
:

Trying to factor by splitting the middle term

2.1 Factoring 4y2-12y+9

The first term is, 4y2 its coefficient is 4 .
The middle term is, -12y its coefficient is -12 .
The last term, "the constant", is +9

Step-1 : Multiply the coefficient of the first term by the constant 4 • 9 = 36

Step-2 : Find two factors of 36 whose sum equals the coefficient of the middle term, which is -12 .

-36 + -1 = -37
-18 + -2 = -20
-12 + -3 = -15
-9 + -4 = -13
-6 + -6 = -12 That's it

5 0

2 years ago

A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex

vredina [299]

Answer:

C. One can be 95% confident that the true proportion of all students receiving financial aid is between 0.52 and 0.66

Step-by-step explanation:

Given that the confidence interval is a term that defines a range of values with the probability to contain a population value that has an actual degree of confidence.

This is represented in a situation where population means falls in between upper and lower intervals.

Hence, in this case, the correct interpretation is option C: One can be 95% confident that the true proportion of all students receiving financial aid is between 0.52 and 0.66

3 0

3 years ago

Simplify the given expression

Rashid [163]

Answer:

Step-by-step explanation:

you divide

5 0

3 years ago

Read 2 more answers