2 years ago

I need help with this question

Mathematics

1 answer:

zepelin [54]2 years ago

7 0

Answer:

205.62

Step-by-step explanation:

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2 years ago

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Directions: Solve for x.<br> Please help

aksik [14]

Answer:

Step-by-step explanation:

Since the whole right side of that triangle is equal to 28 and the lower portion is 21, then we know the upper portion is 7. Set up a proportion using those sides and the fact that the 2 triangles are similar:

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3 years ago

A radio station is having a T-shirt design contest. The first prize is four times the second prize. The second price is four tim

hammer [34]

Answer:
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Explanation:
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3 years ago

Assume that a policyholder is four times more likely to file exactly two claims as to file exactly three claims. Assume also tha

kykrilka [37]

Answer:

1.3125

Step-by-step explanation:

Given that our random variable $X$ follows a Poisson distribution $P(X=k)=\frac{\lambda^k e^-^p}{k!} \ \ \ \ \ \ \ \ p=\lambda$

Evaluate the formula at $k=2,3:$

$P(X=2)=0.5\lambda^2e^{-\lambda}\\\\P(X=3)=\frac{1}{6}\lambda^2e^{-\lambda}$

#since

$4P(X=2)=P(X=3);\\\\0.5\lambda^2e^{-\lambda}=4\times\frac{1}{6}\lambda^3e^{-\lambda}\\\\0.5\lambda^2=\frac{2}{3}\lambda^3\\\\0.75=\lambda$

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$\mu=\lambda=0.75\\\sigma ^2=\lambda=0.75$

#By property variance:

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3 years ago

..... please help me I don't understand this

Gennadij [26K]

Answer:

i think the 2nd one is correct .. i have not fluent in english to explain the answer.

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2 years ago