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lara [203]
2 years ago
5

A nutritional consulting company is trying to find what percentage of the population of a town is overweight. The marketing depa

rtment of the company contacts by telephone 600 people from a list of the town's telephone directory. All 600 people give answers to the survey. Which of the following is the most significant source of bias in this survey?
a. Size of sample.
b. Undercoverage.
c. Voluntary response bias
d. Nonresponse.
e. Response bias.
Mathematics
1 answer:
Ymorist [56]2 years ago
3 0
It is undercoverage bias
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Surface Area Math Question
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Answer:

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2 years ago
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shepuryov [24]

Answer: 2.4 as a decimal or 12/5 in fraction form

4 0
3 years ago
PLEASE ANSWER! I WILL BRIANLIEST.
Brut [27]
Let x be the required waranty period, then
P(X < x) = P(z < (x - 12)/(8/12)) = 1 - 0.067 = 0.933
P(z < 12(x - 12)/8) = P(z < 1.498)
12(x - 12)/8 = 1.498
x - 12 = 8(1.498) / 12 = 0.9987
x = 12 - 0.9987 = 11

Therefore, they should waranty for 11 years so that no more than 6.7% fail within that time.

cost of production = %13
Let the price be p, then
revenue less price of failed iron = p - 0.067(13) = p - 0.871
Profit = p - 0.871 - 13 = 5
p - 13.871 = 5
p = 5 + 13.871 = 18.871

Therefore, the should charge $18.87 per waffle iron.
5 0
3 years ago
I need help! ASAP!!!
Arisa [49]

Answer:

<h2>S.A. = 234 mm²</h2>

Step-by-step explanation:

The formula of a surface area of a rectangular prism:

S.A.=2(lw+lh+wh)

l - length

w - width

h - height

We have l = 15 mm, w = 3 mm, h = 4 mm. Substitute:

S.A.=2(15\cdot3+15\cdot4+3\cdot4)=2(45+60+12)=2(117)=234

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3 years ago
What are inverse functions?
laila [671]

If functions transfer some a to b via some formula, then inverse of such functions transfer b to a via some other formula.

Hope this helps.

8 0
3 years ago
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