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nexus9112 [7]
3 years ago
11

In a game,two cards are drawn,and then multiplied.The winner is the person with the largest product.Sofia had -8 and 4,Luke had

-6 and -6.​
Mathematics
1 answer:
Maksim231197 [3]3 years ago
4 0

Answer:

Step-by-step explanation:

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US average math SAT scores follow a normal distribution with a mean of 505 and a standard deviation of 112. A sample of 64 enter
Hitman42 [59]

Answer:

The claim that the scores of UT students are less than the US average is wrong

Step-by-step explanation:

Given : Sample size = 64

           Standard deviation = 112

           Mean = 505

           Average score = 477

To Find : Test the claim that the scores of UT students are less than the US average at the 0.05 level of significance.

Solution:

Sample size = 64

n > 30

So we will use z test

H_0:\mu \geq 477\\H_a:\mu < 477

Formula : z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

z=\frac{505-477}{\frac{112}{\sqrt{64}}}

z=2

Refer the z table for p value

p value = 0.9772

α=0.05

p value > α

So, we accept the null hypothesis

Hence The claim that the scores of UT students are less than the US average is wrong

3 0
3 years ago
PLSS HELP<br><br> -21-9<br> ———-<br> -5
Simora [160]

Answer:

6

reduce the expression  and if possible do that by cancelling the common factors :)

4 0
2 years ago
Solve for x.<br><br><img src="https://tex.z-dn.net/?f=x%20%2B%206%20-%202x%20%3D%20x%20-%2024" id="TexFormula1" title="x + 6 - 2
zhenek [66]

<em>Greetings from Brasil...</em>

First degree equation. The variables are in the 1st member and the numbers in the 2nd member.

X + 6 - 2X = X - 24

X - 2X - X = - 24 - 6

- 2X = - 30

<h2>X = 15</h2>

7 0
3 years ago
Brianna received pledge amounts of $89, $35, $22, $36,
Alex17521 [72]

Answer:mean

Step-by-step explanation: I am also not sure because I been looking for the anwser to this but I think it’s mean

5 0
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4 2/3 divided by 1/2 = what plsssss helppp
MAXImum [283]

Answer:

8.66

Step-by-step explanation:

6 0
3 years ago
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