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3 years ago

90 is n multiplied by 123 write equation (IXL)

Mathematics

1 answer:

Gennadij [26K]3 years ago

8 0

First translate words to symbols

The word is translates to =

The word multiplied translates to *

The letter n is a variable, do nothing with it

90=123n

P.S. If its multiplication and there is something to multiply with a variable

Dont do 123 * n or n * 123

Write it 123n (its the proper way)

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3 years ago

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4 years ago

A computer chess game and a human chess champion are evenly matched. They play twelve games. Find probabilities for the followin

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Answer:

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Step-by-step explanation:

Given : A computer chess game and a human chess champion are evenly matched. They play twelve games.

To find : The probability that they each win six games?

Solution :

Applying binomial distribution,

Here n=12 and p=0.5

$P(X=k)=\frac{n!}{k!(n-k)!}\times p^k\times (1-p)^{n-k}$

The probability that they each win six games is k=6.

$P(X=6)=\frac{12!}{6!(12-6)!}\times 0.5^6\times (1-0.5)^{12-6}$

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$P(X=6)=11\times 2\times 3\times 2\times 7\times 0.015625\times 0.015625$

$P(X=6)=0.225$

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4 years ago

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3 years ago