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Alekssandra [29.7K]
3 years ago
10

The difference of a number q and 8

Mathematics
2 answers:
SVEN [57.7K]3 years ago
5 0
Difference means subtraction ...so the difference of a number q and 8 is ....q - 8 (or i think it can be 8 - q also..).... Hope it helps!!!
anyanavicka [17]3 years ago
3 0
8-q, considering the word "difference" means subtraction, so you are subtracting 8 from q.
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Water is leaking from a jug at a constant rate. After leaking for 2 hours, the jug contains 48 fluid ounces of water. After leak
devlian [24]

Answer:

2 fluid ounce/hour

Step-by-step explanation:

2 hours to 5 hours ; 3 hours apart

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8 0
3 years ago
For X a binomial random variable with n=5 and p=1/4, answer the following
mash [69]
Recall that for X\sim\mathrm{Bin}(n,p), i.e. a random variable X following a binomial distribution over n trials and with probability parameter p,

\mathbb P(X=x)=f_X(x)=\begin{cases}\dbinom nx p^x(1-p)^{n-x}&\text{for }x\in\{0,1,\ldots,n\}\\\\0&\text{otherwise}\end{cases}

So you have

\mathbb P(X=2)=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac34\right)^{5-2}=\dfrac{135}{512}\approx0.26

\mathbb P(2\le X\le4)=\displaystyle\sum_{x=2}^4\mathbb P(X=x)
=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac14\right)^{5-2}+\dbinom52\left(\dfrac14\right)^3\left(1-\dfrac14\right)^{5-3}+\dbinom52\left(\dfrac14\right)^4\left(1-\dfrac14\right)^{5-4}
=\dfrac{375}{1024}\approx0.37

The expected value of X\sim\mathrm{Bin}(n,p) is simply np, while the standard deviation is \sqrt{np(1-p)}. In this case, they are \dfrac54=1.25 and \sqrt{\dfrac{15}{16}}\approx0.97, respectively.
7 0
3 years ago
Need help with this question, if you don’t know it don’t answer it please
Lerok [7]

Answer:

54

Step-by-step explanation:

9 x 3 x 2 = 54

7 0
3 years ago
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VMariaS [17]

Answer:

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4 0
3 years ago
Is 5768 divisible by 2
Alexandra [31]
Yes it is divisible by 2. The answer would be 2884.
Thank you
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3 years ago
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