3 years ago

Help me please! I need to get this done to go outside :(

Mathematics

1 answer:

Dafna11 [192]3 years ago

5 0

Answer:

98ft.

Step-by-step explanation:

Question is asking for the total square feet of laminate wood to cover the entire retail store. Add all the sides together to get your answer.

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3 years ago

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Find the mean and standard deviation. Show all work. 1. X 0 1 2 3 4 P(x) .07 .38 .22 .13

Paraphin [41]

Answer:

Mean = 2.14

Standard deviation = 2.40

Step-by-step explanation:

The calculation of mean and standard deviation is shown below:-

$X = .07\times0 + 0.20\times 1 + 0.38\times 2 + 0.22\times 3 + 0.13\times 4\\\\ = 0 + 0.2 + 0.76 + 0.66 + 0.52$

= 2.14

So, the mean is 2.14

Now, For computing the standard deviation first we need to find out the variance which is shown below:-

Variance is

$Var(X) = P(X^2) - [P(X)]^2\\\\ P(X^2) = .07\times (0^2) + .20\times (0^1) + .38\times (0^2) + .22\times (0^3) +0.13\times (0^4)$

After solving the above equation we will get

= 5.78

Now, the standard deviation is $= \sqrt{Variance}$

$= \sqrt{5.78}$

= 2.404163056

= 2.40

7 0

3 years ago

Help me please! I need to get this done to go outside :(​

Help me please! I need to get this done to go outside :(