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2 years ago

IMA DO BRAINLYST AFTER IM DONE I PROMISE BUT TY FOR ALL HELP THERES STILL MORE

Mathematics

1 answer:

sveta [45]2 years ago

4 0

Answer:

Explanation:

Oscar put the decimal place in the wrong spot. here is what it looks like: 0.9. Here is the real answer: .09. So, the equation should be 7 + .09.

hope this helps.

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Step-by-step explanation:

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Answer:

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Nookie1986 [14]

The Solution:

Given:

Required:

Find the standard deviation of the probability distribution.

Step 1:

Find the expected value of the probability distribution.

$E(x)=\mu=\sum_{i\mathop{=}0}^3x_iP_(x_i)$ $\begin{gathered} \mu=(0\times0.25)+(1\times0.05)+(2\times0.15)+(3\times0.55) \\ \\ \mu=0+0.05+0.30+1.65=2.0 \end{gathered}$

Step 2:

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Thus, the standard deviation is 1.60

Answer:

1.60

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1 year ago

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