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andreev551 [17]
3 years ago
11

A group of high school seniors took a scholastic aptitude test. The resulting math scores had a mean 504.7 with a standard devia

tion of 191.4, verbal scores had a mean 491.5 with a standard deviation of 168.9, and the correlation between verbal and math scores was r 0.824. Answer the questions below a) What is the correlation?b) Write the equation of the line of regression predicting verbal scores from math scores (Round to three decimal places as needed) d) A person tells you her math score was 387. Predict her verbal score.
Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

Answer:

Her verbal score will be 754

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Can somebody help me with this?
Juli2301 [7.4K]

Answer:

E) 1/2

Step-by-step explanation:

This is no ordinary problem. It actually requires you to solve two different problems in order to figure out the correct answer.

First, we must figure out what the hypotenuse of the triangle is. We have the two small sides (5 and 12), but don't have the larger side. To find this, we must use the Pythagorean theorem: a^{2} + b^2 =c^2

Let's plug in our a and b values

5^2 + 12^2 = C^2

Simplify

144 + 25 = c^2

169 = c^2

Square both sides

c = 13

But sadly, we aren't done yet. Now we know the length of the whole hypotenuse side. Time to figure out what X is by a simple equation.

12x + 14x = 13

Simplify

26x = 13

Divide by 26

Answer is 1/2

6 0
4 years ago
What is factor sir 13?
professor190 [17]
Since 13 can only be divided evenly by 1 and 13 (itself), it is called a prime number.
5 0
3 years ago
Read 2 more answers
mias bank statement showes a closing balance of 75.65 there are no outstanding checks or deposits her checkbook showes a balance
Solnce55 [7]
I'm pretty sure to solve this all you do is subtract 77.95 - 75.65, which would be 2.30. Hope that helps!
4 0
3 years ago
6) Which is the best deal?<br> 3.45 lbs for $3.58<br> $10.23 for 10.43 lbs
kirill115 [55]

Answer:

3.45 lbs for $3.58 because your getting 3 pounds of the item for 3 dollars.

Step-by-step explanation:

3.45 lbs for $ 3.58 is cheaper than 10.43 lbs for 10.23

5 0
3 years ago
Which expression is equivalent to<br> (3x2-7)
allsm [11]
There aren’t any choices. Message me with them or with more information so I can answer this for you.
8 0
3 years ago
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