Is this question right ?

Mathematics

1 answer:

Tamiku [17]3 years ago

3 0

Answer:

No, its C. G+15+8=45

Step-by-step explanation:

Because 1/3 of 45 is 15 is the amount of fuji apples, and 8 are red delicious, the rest are the amount of granny smiths.

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Find the measure of 7

fredd [130]

Answer:

126 degree

Step-by-step explanation:

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7 0

2 years ago

Solve for x. 0.6x = 1.2x + 6

hichkok12 [17]

Step-by-step explanation:

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2 years ago

the mgf of a random variable x is e^3(e^t-1). Find P[mean - standard deviation squared < X < 1/2( mean + standard deviatio

postnew [5]

The given MGF is that for a random variable following a Poisson distribution with parameter $\lambda=3$ .

This means $\mathbb E(X)=\mathbb V(X)=\lambda$ , and $X$ has PMF

$f_X(x)=\begin{cases}\dfrac{3^xe^{-3}}{x!}&\text{for }x\ge0\\0&\text{otherwise}\end{cases}$

So, the desired probability is

$\mathbb P\left(\lambda-\lambda^2$

This is equivalent to

$\displaystyle\sum_{x=0}^2\mathbb P(X=x)=\sum_{x=0}^2\frac{3^x}{x!e^3}=\frac{17}{2e^3}\approx0.4232$