<u>Answer- </u>D. There is a strong negative association between the variables
<u>Solution-</u>
Properties of Correlation Coefficient
1- Its value ranges between -1 and 1.
2- The greater the absolute value of correlation coefficient, the stronger is the linear relationship.
3- The weakest linear relationship is indicated by a correlation coefficient equal to 0.
4- A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.
5- A negative correlation means that if one variable gets bigger, the other variable tends to get smaller.
As the given correlation coefficient is -0.98 (-ve), whose absolute value is 0.98 (closer to 1)
So there is a strong negative association between the variables.
Answer:
Actual Height = 27.11 m
Step-by-step explanation:
Given:
Height of model rocket = 4.5 % of actual Height
Model Height = 1.22 m
To Find:
Actual Height of rocket = ?
Solution:
We have to Find the Actual Height of the rocket
Let actual height be x
Now it is given that
Height of model rocket = 4.5 % of actual Height
As we have the values so putting it in it becomes
1.22 = 4.5 % * x
it could be written as
Multiplying both sides by 
it becomes
1.22* = x
= x
27.11 m =x
or
Actual Height = 27.11 m
B because it’s really the answer
The interest rate needed to double the investment in 18 years is 6%.
<h3>What is the interest rate?</h3>
Interest earned is a function of the amount invested, interest rate and time. The future value of the investment is to be $6000 (3000 x 2). Interest earned would be $3000 (6000 - 3000)
Interest rate = interest earned / (amount invested x time )
$3000 / ($3000 x 18) = 6%
To learn more about simple interest, please check: brainly.com/question/27328409
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Answer:
34.32 sq feet
Step-by-step explanation:
it is about finding the total surface area. Since it is a rectangular prism, we will have 2 identical sizes of front and back, 2 identical sizes of top and bottom, and 2 identical sizes of right and left.
therefore
front = 2.2 x 3.3 = 7.26
top = 3.3 x 1.8 = 5.94
right = 1.8 x 2.2=3.96
total SA = 2( 7.26 + 5.94 + 3.96) =34.32
