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faust18 [17]
3 years ago
15

Broccoli tastes bitter to some people. This bitterness is inherited through the TAS2R38 gene. About 52% of the population has th

is gene. You want to estimate the proportion of Americans who have this gene. How large a sample must you test, with a 5% margin of error and 90% confidence, to estimate the proportion of people who carry the TAS2R38 gene?
100 people
10,000 people
271 people
37 people
514 people
Mathematics
1 answer:
Eddi Din [679]3 years ago
3 0

Answer:

271 people

Step-by-step explanation:

Margin of error = critical value × standard error

At 90% confidence, the critical value is 1.645.

Standard error for a proportion is s = √(p (1 − p) / n).

0.05 = 1.645 √(0.52 (1 − 0.52) / n)

n = 271

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Answer:

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Step-by-step explanation:

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radius= 7ft (half of diameter)

3.14 × 7 × 7= 153.95

7 0
2 years ago
Find the propertyof real numbers illustrated by the equation -4(x+4)=-4x-16
asambeis [7]

Answer:

distributive property of multiplication over addition

Step-by-step explanation:

The distributive property of multiplication over addition:

a(b + c) = ab + ac

You have

-4(x + 4) = -4x - 16

which is an application of that property.

Answer: distributive property of multiplication over addition

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3 years ago
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One metric ton is equal to 1000 Kilograms
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Semmy [17]
What’s the question?
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If h and j are positive, (h+j)2 = 73 and h2 +j2 = 51, what is hj?
kkurt [141]

Answer:

hj = 11

Step-by-step explanation:

  • (h+j)^2=73,\:\: and\:\: h^2+j^2 =51 (Given)

  • (h+j)^2 = h^2+j^2 +2hj

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2 years ago
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