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worty [1.4K]
3 years ago
12

An inspector for the U.S. Food and Drug Administration obtains all vitamin pills produced in an hour at the Health Supply Compan

y. She thoroughly mixes them, then scoops a sample of 10 pills that are to be tested for the exact amount of vitamin content. Does this sampling plan result in a random sample? Explain.
Mathematics
1 answer:
Oxana [17]3 years ago
3 0

Answer:

No. See explanation below.

Step-by-step explanation:

A random sample is a type of sample in which every item has the same probability of being selected. Equally, after we take one item, the remaining items keep having the same probability of being selected.

In this problem, the vitamin pills are firstly obtained from the pills produced in an hour at the Health Supply Company, therefore, not all pills had the same probability of being selected in the first place.

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Lostsunrise [7]

Answer:

Step-by-step explanation

7. Find the value of Y

3X+ (8Y-102)+(2Y+6)=360

3X+(8Y+2Y)-102+6=360

3X+10Y-96=360

3X+10Y=456

10Y=456-3X

Y=1/10(456-3X)

3 0
3 years ago
I need help with this if you get it right I will mark you brainlest
laiz [17]
The correct answer is A!

A. 1/2 is equal to .5 so multiply 2,000 by .5 and you’ll get $1000. She spends $900 on rent. Since $900 is less than $1000 she is not spending more than half of her income on rent. There for this statement is False

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C. 1/4 = .25 so if you do 2,000 multiplied by .25 you’ll end up with $500. The total cost of utilities, cable and groceries ( 120 + 80 + 320 ) = $520 and since $500 is less than $520 then she is spending more than 1/4 of her income on those expenses. Which makes this statement true.

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8 0
3 years ago
Write a power that has a value greater than 140 and less than 145.
Pachacha [2.7K]

Answer:

12^{2}

Step-by-step explanation:

To find: a power that has a value greater than 140 and less than 145

Solution:

Take x=12^{2}

Here,

12^{2}=144 and 140

That is 140

Therefore,

12^{2} has a value greater than 140 and less than 145.

3 0
3 years ago
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pickupchik [31]

Hey there! :)

Answer:

0.3.

Step-by-step explanation:

Looking at the row for "Less than 80° F", the column for "Rain" shows a 0.3 probability in the table. Therefore:

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3 0
3 years ago
On a road trip, you stop to get gas when there is 1 4of a tank of gas left. You get the tank filled and this takes 12 gallons of
dimulka [17.4K]

Answer: 16 gallons

Step-by-step explanation:

Since we are given the information that 1/4 of the gas is left, it simply means that (1 - 1/4) = 3/4 has been used.

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