3 years ago

Which of the following is a trinomial with a constant term?

Mathematics

1 answer:

Setler79 [48]3 years ago

6 0

B is the answerr for me :>

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About 10% of the population has a particular genetic mutation. 700 people are randomly selected. Find the standard deviation for

Oduvanchick [21]

Answer: 7.94

Step-by-step explanation:

The formula to calculate the standard deviation for binomial distribution :-

$\sigma=\sqrt{np(1-p)}$ , where n is the number total of trials and p is the probability of getting success in each trial.

Given : The probability of the population has a particular genetic mutation=0.1

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$\sigma=\sqrt{700\times0.1(1-0.1)}\\\\\Rightarrow\sigma=\sqrt{63}\\\\\Rightarrow\sigma=7.9372539331\approx7.94$

Hence, the standard deviation for the number of people with the genetic mutation in such groups of 700 = 7.94

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