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Anuta_ua [19.1K]
3 years ago
15

If the correlation coefficient is 0.96, how confident can you be that your predicted value for the cost of a call at 70 minutes

is close to the exact value for the cost of a call at 70 minutes?
Pick one of the options below and explain your answer?

Very confident
Somewhat confident
Not confident
Mathematics
2 answers:
Kitty [74]3 years ago
6 0
Very confident because a correlation coefficient of 1 is perfect then a correlation coefficient of .96 means it is like 96% accurate
a_sh-v [17]3 years ago
4 0

Answer:

Very confident

Step-by-step explanation:

The closer the correlation coefficient is to 1, the stronger the correlation.  Anything above .4 is relatively strong.    So I would be very confident.

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How do you write the following statement as an equation: a number N is 4 less than 8 ??
kiruha [24]
4 less than 8 is a number N

8 - 4 = n
or
n = 8 - 4
6 0
3 years ago
Problem 1<br> 3x + y = –14<br> -2x-y=9
Radda [10]

Answer:

x = -5 , y = 1

Step-by-step explanation:

Solve the following system:

{3 x + y = -14 | (equation 1)

-2 x - y = 9 | (equation 2)

Add 2/3 × (equation 1) to equation 2:

{3 x + y = -14 | (equation 1)

0 x - y/3 = (-1)/3 | (equation 2)

Multiply equation 2 by -3:

{3 x + y = -14 | (equation 1)

0 x+y = 1 | (equation 2)

Subtract equation 2 from equation 1:

{3 x+0 y = -15 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by 3:

{x+0 y = -5 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = -5 , y = 1

3 0
3 years ago
Which of the following is the correct decimal and percent for the fraction 3/10?
goldenfox [79]

0.3, 30% is the correct answer

8 0
2 years ago
12345678910111213141516
Galina-37 [17]

Step-by-step explanation:

oh, come on. you can just use common sense.

a local minimum is a point where the curve goes down to, and then turns around and starts to go up again. that point in the middle, where it turns around and does not go down any further, is the minimum.

for the maximum the same thing applies, just in the other direction (the curve goes up and turns around to go back down again).

a)

the local minimum values (y) are

-2, -1

b)

the values of x where it had these minimum values are

-1, +3

4 0
2 years ago
The graph shows the relationship between hours worked and total earnings for a store clerk. Let h represent hours worked and e r
Dovator [93]

Answer:

The answer is C.

Step-by-step explanation:

y = kx → e =

30

4

h → e = 7.5h

The independent variable is hours worked, h, and the dependent variable is total earnings, e. The independent variable is the input value of a function. The dependent variable is the output value of a function.

8 0
3 years ago
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