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Marta_Voda [28]
3 years ago
6

Which correlation coefficient obtained from modeling advertising and sales data of tutti frutti ice cream expresses the stronges

t correlation of the data?
a.r = .10
b.r = .50
c.r = .75
d.r = .90
Mathematics
2 answers:
Westkost [7]3 years ago
8 0
Just had this problem the answer is D.
Sidana [21]3 years ago
4 0

Answer:

d) r=0.90

Step-by-step explanation:

When the r value is closer to +1 or -1, it indicates that there is a stronger linear relationship between the two variables. A correlation nearerto -1 is a strong negative correlation while a correlation of 0.10 would be a weak positive correlation.

Correlation coefficient measures the strength of association between two variables.

It may be positive or negative.

If nearer to 1 or - there is strong correlation

Since here is it 0.90 positive and nearer to 1 out of all 4 options

option d is correct

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3 0
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I need help ASAP please
Sveta_85 [38]

Answer:

45/75

Step-by-step explanation:

Because B and A goes together

6 0
3 years ago
A random telephone survey of 1021 adults (aged 18 and older) was conducted by Opinion Research Corporation on behalf of Complete
Wewaii [24]

Answer:

a. See attachment below

b. 613 people

c. Categorical

Step-by-step explanation:

a. View attachment below

b.

Given

Total Number of People Surveyed = 1021

X tax return by professional / Number of People Surveyed = 60%

X tax /1021 = 0.6

X tax = 0.6 * 1021

X tax = 612.6

X tax = 613------ Approximated

So, the number of people used an accountant or professional tax preparer are 613.

c.

The data for preparing a tax return will be considered as categorical as the methods for a person to file his/her tax returns are categorized into four which are:

1.Electronically

2.Manual preparation

3.Online tax service

4.Use of software tax program

7 0
3 years ago
PLEASE ANSWER THE QUESTION IN THE PICTURE BELOW
vekshin1

9514 1404 393

Answer:

  12 square inches

Step-by-step explanation:

The area is given by the formula ...

  A = 1/2bh

Here, the base is 6 inches and the height is given as 4 inches. Then the area is ...

  A = (1/2)(6 in)(4 in) = 12 in²

The area of the triangle is 12 square inches.

_____

<em>Comment on the problem</em>

Since you are given the base and height, we presume you are intended to use the formula above. You are also given all three side lengths. If you use the appropriate formula with those, you find the area is about 15.6 square inches. (The height of this triangle is actually closer to 5.2 inches.)

The figure represents a geometry that cannot exist. With the given base and height, the side lengths should be 5, not 6.

8 0
2 years ago
3. If you were to graph the equation y = -x + 1 and graph the equation y
Nat2105 [25]

Answer: (3, -2)

Step-by-step explanation: graphed both of em on desmos and thats the intersection.

5 0
3 years ago
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