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4 years ago

Select the correct answer.

Mathematics

2 answers:

Elena L [17]4 years ago

4 0

The answer is D because every number after 30 is getting multiplied by 3

monitta4 years ago

4 0

Answer:

Step-by-step explanation:

The recursive formula for a geometric sequence is an=an−1×r, and for this specific sequence b is the right answer. Hope this helps

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3 years ago

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Trava [24]

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3 years ago

Suppose a biological cell contains 400 genes. When treated radioactively the probability that

Anton [14]

Let $X\sim\mathrm{Bin}(400,0.006)$ be the random variable representing the number of genes that do get mutated. Here $\mathrm{Bin}(n,p)$ denotes a binomial distribution with parameters $n$ (total number of genes) and $p$ (probability of mutation).

Then the probability that *at most* 4 genes get mutated is

$\mathbb P(X\le4)=\displaystyle\sum_{x=0}^4\mathbb P(X=x)$

where

$\mathbb P(X=x)=\begin{cases}\dbinom{400}x0.006^x(1-0.006)^{400-x}&\text{for }x\in\{0,1,2,\ldots,400\}\\\\0&\text{otherwise}\end{cases}$

You should find that

$\mathbb P(X\le4)\approx0.9047$

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3 years ago