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2 years ago

I just don’t get it, please help me.

Mathematics

1 answer:

Gala2k [10]2 years ago

8 0

Answer:

Answer in the image below \/

Step-by-step explanation:

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A company that sells annuities must base the annual payout on the probability distribution of the length of life of the particip

Svetlanka [38]

Answer:

Step-by-step explanation:

Let X be length of life of the participants in the plan.

Given that X is N(68,3.5)

We convert this to standard normal score z using

$z=\frac{x-68}{3.5}$

a) proportion of the plan recipients that would receive payments beyond age 75= $P(X\geq 75) = P(Z\geq 2)\\= 0.025$

b) proportion of the plan recipients die before they reach the standard retirement age of 65= $P(X\leq 65) = P(z\leq -0.86)\\=0.5-0.2764\\=0.2236$

c) x for 86% ceased

$P(Z$

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3 years ago

Simplify and express the result in power notation with positive exponent

Molodets [167]

Answer:

3²

Step-by-step explanation:

Given expression:

$\sf (3^{-3} \div 3^{-10}) \times 3^{-5}$

Following the <u>order of operations</u>, carry out the calculations inside the parentheses first.

$\textsf{Apply the quotient exponent rule} \quad a^b \div a^c=a^{b-c}:$

$\implies \sf 3^{-3-(-10)} \times 3^{-5}$

$\implies \sf 3^{-3+10} \times 3^{-5}$

$\implies \sf 3^{7} \times 3^{-5}$

$\textsf{Apply the product exponent rule} \quad a^b \times a^c=a^{b+c}:$

$\sf \implies 3^{7+(-5)}$

$\sf \implies 3^{7-5}$

$\sf \implies 3^2$

Learn more about exponent rules here:

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4 0

1 year ago

Read 2 more answers

Mrs. Synder must choose two of her homeroom students to be class representatives. The class consists of 13 girls and 9 boys. App

Tanzania [10]

9/22 x 13/21 = 0.25 = 25% B

5 0

2 years ago

Read 2 more answers

There are 100 people in a sport centre.

sleet_krkn [62]

By definition of complement,

Pr[not P | G and T] = 1 - Pr[P | G and T]

and by definition of conditional probability,

Pr[not P | G and T] = 1 - Pr[P and G and T] / Pr[G and T]

Pr[not P | G and T] = 1 - (16/100) / (33/100)

Pr[not P | G and T] = 1 - 16/33

Pr[not P | G and T] = 17/33

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3 years ago

Which expersstion is equevelint to (6xp) + 3?

nikitadnepr [17]

Answer:

3+(px6)

Step-by-step explanation:

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3 years ago