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2 years ago

What is the square root of 144

Mathematics

2 answers:

zimovet [89]2 years ago

6 0

Answer: 12

Step-by-step explanation: To solve this problem, first notice that the square root of 144 is a perfect square. In other words, it's possible to find a whole number multiplied by itself which equals 144.

Since 144 factors as 12 x 12, the square root of 144 is 12.

Dmitrij [34]2 years ago

3 0

The square root of 144 is 12

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vredina [299]

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2 years ago

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Answer:

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2 years ago

The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typo

muminat

Answer:

The required probability is 0.55404.

Step-by-step explanation:

Consider the provided information.

The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typographical errors on a page of second booklet is a Poisson random variable with mean 0.3.

Average error for 7 pages booklet and 5 pages booklet series is:

λ = 0.2×7 + 0.3×5 = 2.9

According to Poisson distribution: $P(k{\text{ events in interval}})={\frac {\lambda ^{k}e^{-\lambda }}{k!}}$

Where $\lambda$ is average number of events.

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Substitute the respective values in the above formula.

$P(k > 2)= 1 - ({\frac {2.9 ^{0}e^{-2.9}}{0!}} + \frac {2.9 ^{1}e^{-2.9}}{1!}} + \frac {2.9 ^{2}e^{-2.9}}{2!}})$

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$P(k > 2)=0.55404$

Hence, the required probability is 0.55404.

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Answer is A.

Hope this helps. - M

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