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olchik [2.2K]
4 years ago
9

Calculate the expected value, the variance, and the standard deviation of the given random variable X. (Round all answers to two

decimal places.) Twenty-six darts are thrown at a dartboard. The probability of hitting a bull's-eye is .1. Let X be the number of bull's-eyes hit.
Mathematics
1 answer:
motikmotik4 years ago
5 0

Answer:idk

Step-by-step explanation:

i never learned it

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Plz help due 2morrow 14 and 15
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14 length of the side is 3x-7

and 15 length of side is 2x+6

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Which is 34,513 closer to, 35,000 or 34,000?
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35,000

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~Because it's over 500~

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I couldn't fit the whole graph but it's still clear please help
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Lynn has 8.58 in quarters and pennies. If she has eight times as many pennies as quarters, how many of each does she have
Mashcka [7]

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4 0
3 years ago
Steps to solve 5[3(14.5+7)-3]-7.4
steposvetlana [31]
Hey there!

To solve this expression, you must follow your orders of operations or PEMDAS (Parenthesis, Exponents, Multiplication and Division, Addition and Subtraction).

In the case of  <span>5[3(14.5+7)-3]-7.4, you not only have parenthesis, but you also have brackets. To start, you would first simplify what is in the parenthesis:
</span><span>5[3(14.5+7)-3]-7.4
5[3(21.5)-3]-7.4

Now, simplify what is in the bracket, starting by multiplying 3(21.5) since multiplication comes before addition and subtraction:
</span><span>5[3(21.5)-3]-7.4
5[64.5-3]-7.4
5[61.5]-7.4

Now, multiply 5*61.5 since multiplication comes next:</span>
<span>5[61.5]-7.4
307.5-7.4

And finally, subtract what is left since it is your final operation remaining to get 300.1 as your final answer.

Hope this helps and have a marvelous day!
</span>
6 0
4 years ago
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