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3 years ago

Josie has 4 counters Sophia has 80 counters Sophia has how many times as counters as Josie

Mathematics

1 answer:

AveGali [126]3 years ago

8 0

Answer:

Step-by-step explanation:

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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

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

8 0

3 years ago

What is the closed linear form of the sequence of the negative even integers starting with -2?

Snowcat [4.5K]

Hello,

n=1,2,3,.... and not 0

Answer B a(n)=-2*n

4 0

4 years ago

Read 2 more answers

1/3 + 5/6 + 5/12 What is the answer

SOVA2 [1]

1/3 + 5/6 + 5/12

1.583333333333333

3 0

3 years ago

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To the nearest degree, what is the measure of the central angle for faucets? 37° 24° 48° 43°

Masteriza [31]

Answer:

$\large\boxed{43^o}$

Step-by-step explanation:

$\text{Faucets}\to12\%\\\\p\%=\dfrac{p}{100}\to12\%=\dfrac{12}{100}=0.12\\\\12\%\ \text{of}\ 360^o\to0.12\cdot360^o=43.2^o\approx43^o$

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3 years ago

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An ordered pair tells us what about a system of equations ?

mash [69]

Answer:

Step-by-step explanation:

It may not tell you anything. You have to be careful how you think about the answer to this. An ordered pair is just that: it describes an x and y value and that is really all that it does.

However it may also be used to describe the solution to a system of equations which cross in one place. For example, if you plot

y = x + 1

y = -3x + 2

The ordered pair that gives the point where both equations equal the same thing is (0.25,1.25) The graph is shown below, and the ordered pair marks the solution.

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3 years ago