3 years ago

The TV weatherman says "there's a 30% chance of rain tomorrow ". Explain what this statement means?

1 answer:

7 0

It means the probability that at least 0.01 of an inch of precipitation will fall on your rooftop if you live in the forecast area.

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Assume that a procedure yields a binomial distribution with n=3 trials and a probability of success of p=0.300. use a binomial p

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$\mathbb P(X=x)=\begin{cases}\dbinom3xp^x(1-p)^{3-x}&\text{for }0\le x\le3\\\\0&\text{otherwise}\end{cases}$

$\implies\mathbb P(X=2)=\dbinom32(0.3)^2(0.7)^1=0.189=18.9\%$

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3 years ago

A student wrote the following proof. Evaluate the student’s answer.

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Answer:

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Step-by-step explanation:

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2 years ago

Solve for x 7(x+2) =6(x+5)

Luden [163]

Answer:

Step-by-step explanation:

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3 years ago

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Vinil7 [7]

Simply substitute x for -3 and y for -5, creating the equation shown below:

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Now that you have the parenthesis simplified in the parenthesis, you can use the distributive property by multiplying all the numbers with -6, like so:
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The number of children who have dogs is ten times more than the number of children who have a rabbit.

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