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xeze [42]
3 years ago
7

Which of the following correlation coefficients represents the strongest relationship between two factors? A. –.15 B. –.80 C. +.

38 D. +.03
Mathematics
1 answer:
Lena [83]3 years ago
7 0

Answer:

The strongest relation between the two factors is B.) -0.8

Step-by-step explanation:

The correlation coefficient typically varies from -1 to 1.

The value of -1 for the correlation coefficient denotes that the two variables are have a very strong negative  correlation.

The value of +1 for the correlation coefficient denotes that the two variables are have a very strong negative  correlation.

Therefore among the four options given of -0.15, -0.8, 0.38, 0.03 the strongest relation between two factors is given by -0.8 but as the '-' sign indicates the two factors are negatively correlated.

Negative correlation means that if one variable is high the other would be low.

Positive correlation means that if one variable is high then the other variable is also high and if one variable is low then the other is also low.

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Step-by-step explanation:

depends

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6 0
3 years ago
Can someone help me?​
Tju [1.3M]

Answer:

B

Step-by-step explanation:

in table B if x = 1     y cannot equal both 1 and -1

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7 0
3 years ago
A rocket is launched from atop a 104-foot cliff with an initial velocity of 110 ft/s. A. Substitute the values into the vertical
miv72 [106K]

Answer:

7.68 s

Step-by-step explanation:

The vertical motion formula is:

h_{t} = h_{0} + v_{0}t - \frac{gt^{2}}{2}

<u>Where:</u>

h(t): is the final height = 0

h(0): is the height of the cliff = 104 foot

v(0): is the initial velocity = 110 ft/s

g: is the gravity = 9.8 m/s² = 32.15 ft/s²

Hence, from the vertical motion formula we can find the time that will take the rocket to hit the ground:

0 = 104 + 110*t - \frac{32.15t^{2}}{2}

0 = 104 + t(110 - 16.08t)

We have two solutions:

t₁= -0.84 s

t₂ = 7.68 s

We will take the positive value, thus the time that will take the rocket to hit the ground is 7.68 s.

I hope it helps you!

4 0
3 years ago
When x = 4, y = 1<br> x^2 + 3xy – 7y^2
densk [106]

Answer:

21

Step-by-step explanation:

i worked out the problem

4 0
3 years ago
Find the amount of money in savings account if $3200 was deposited for 3 years at 40% interest compounded annually. Find the int
a_sh-v [17]

Step-by-step explanation:

Formula for compound interest is given by

A = P(1 + R) ^{n}

Where

A is the amount at the end of the period

P is the principal

R is the rate

n is the period

The interest = A - P

From the question

P = $ 3200

n = 3 years

R = 40%

So we have

A = 3200 \times 2.744

A = $ 8780.80

<h3>The amount is $ 8780.80</h3>

The interest is

$ 8780.80 - $3200

<h3>= $ 5580.80</h3>

Hope this helps you

7 0
3 years ago
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