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Olenka [21]
3 years ago
9

PLEAASE HEELP! Will mark brainly!!!

Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0
Please repost... picture is all black
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For a data set of brain volumes ​(cm3​) and IQ scores of eight males, the linear correlation coefficient is found and the​ P-val
tatiyna

Answer:

The​ P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

Step-by-step explanation:

We are given the following information in the question:

p-value = 0.793

Significance level = 0.05

H_{0}: \mu = \text{ The population correlation coefficient is not significantly different from 0}\\H_A: \mu = \text{ The population correlation coefficient is significantly different from 0}

Since p value is greater than the significance value so we fail to reject the null hypothesis and accept the null hypothesis.   We conclude that there is not a significant linear relationship between two variables.

Thus, we can write:

The​ P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is 0.793 which is high so there is not sufficient evidence to conclude that there is a linear correlation between brain volume and IQ score in males.

7 0
4 years ago
If there are 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left af
lyudmila [28]

Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

(1/2)^4 * 360

1/16 * 360

22.5 grams

And this is an exponential function.

4 0
3 years ago
Read 2 more answers
Two equations are shown:
NISA [10]
<span>The value of x is:24


The value of y is:24</span>
5 0
3 years ago
Solve for the value of x - <br><br>5(4x-4)=5(3x+3)​
sattari [20]
<h2>Solve the equation:- </h2>

5(4x - 4) = 5(3x + 3) \\  \cancel5(4x - 4) = \cancel5(3x + 3) \\ (4x  - 4) = (3x + 3) \\ 4x - 3x = 4 + 3 \\ x = 7

<h2>Verification:- </h2>

Put the value of X in equation:-

LHS:-

5(4x - 4) = 5(4(7) - 4) \\ 5(28 - 4) \\ 5(24) = 120

RHS:-

5(3x  + 3) = 5(3(7) + 3) \\ 5(21 + 3)  \\  5(24)  =  120

LHS= RHS

Hence proved

5 0
3 years ago
Read 2 more answers
A rectangle is divided into 8 equal parts.two parts are shaded.what fraction is equivalent to the shaded area of the rectangle
marshall27 [118]
The total shaded area must be 2/8 = 1/4 of the whole area.
4 0
3 years ago
Read 2 more answers
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