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3 years ago

7

Blood type AB is found in only 3% of the population.† If 345 people are chosen at random, find the probability of the following.

(Use the normal approximation.

1 answer:

Anna007 [38]3 years ago

3 0

Answer:

345 times 0.03 = 10.35 but we cant have 0.35 of a person so it is 10 people

Step-by-step explanation:

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Before an election: 23% said they would vote for A, 9% said they would vote for B, 20% said they would not vote. these all voted

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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A small plane is flying a banner in the shape of a rectangle. The area of the banner is 144 square feet . The width of the banne

Margarita [4]

Answer:

The answer to your question is width = 6 ft; length = 24 ft

Step-by-step explanation:

Data

Area = 144 ft²

width = w

length = l

The width is 1/4 of the length

Formula

Area = width x length = w x l

Length = 4 width l = 4w

Process

1.- Substitute length in the first equation

Area = w(4w)

Simplify

Area = 4w²

2.- Solve for w

w = $\sqrt{\frac{Area}{4}}$

Substitution

w = $\sqrt{\frac{144}{4}}$

Simplification

w = $\sqrt{36}$

Result

w = 6 ft

3.- Find l

l = 4(6)

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3 years ago