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Kruka [31]
2 years ago
9

Sharon wants to estimate the percentage of parents that use cloth diapers. She asks a randomly selected group of 75 parents whet

her or not they use cloth diapers. What is the population?
Mathematics
1 answer:
Sloan [31]2 years ago
5 0

Answer: Parents.

Step-by-step explanation:

  • In statistics , a population is a large group of similar things or members by researcher's perspective from that he/ she draw a finite subset also known as sample to follow his / her research.

Here, Sharon wants to estimate the percentage of parents that use cloth diapers.

i.e.Researcher = Sharon

Since Sharon will reach parents about her objective of whether they use cloth diapers.

So , Population = Parents

If She asks a randomly selected group of 75 parents whether or not they use cloth diapers , then Sample size is 75 .

Therefore, the population is : "Parents."

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The profitability, P, of a popular restaurant franchise can be modeled by the function P (t) = t4 – 10t3 + 28t2 – 24t, where t i
vekshin1

In this question, the profit of the restaurant after t months is given by a polynomial function. To find when it begins to show a profit, we find the numerical values of the function for t, and it shows a profit when t > 0

Profit after t months:

P(t) = t^4 - 10t^3 + 28t^2 - 24t

0 months:

This is P(0). So

P(0) = 0^4 - 10*0^3 + 28*0^2 - 24*0 = 0

1 month:

This is P(1). So

P(1) = 1^4 - 10*1^3 + 28*1^2 - 24*1 = -5

2 months:

This is P(2). So

P(2) = 2^4 - 10*2^3 + 28*2^2 - 24*2 = 0

3 months:

This is P(3). So

P(3) = 3^4 - 10*3^3 + 28*3^2 - 24*3 = -9

4 months:

This is P(4). So

P(4) = 4^4 - 10*4^3 + 28*4^2 - 24*4 = -32

5 months:

This is P(5). So

P(5) = 5^4 - 10*5^3 + 28*5^2 - 24*5 = -45

6 months:

This is P(6). So

P(6) = 6^4 - 10*6^3 + 28*6^2 - 24*6 = 0

7 months:

This is `P(7). So

P(7) = 7^4 - 10*7^3 + 28*7^2 - 24*7 = 175

After 7 months it shows profit, so it starts showing profit on the 6th month, and thus, the correct answer is given by option D.

For another example of a function involving numeric value, you can check brainly.com/question/24231879

8 0
2 years ago
Information was collected on those who attended the opening of a new movie. The analysis found that 56 percent of the moviegoers
kherson [118]

Answer: 0.65

Step-by-step explanation:

Let A denote that moviegoers were female and B denotes that moviegoers were under age 25.

As per given we have,

P(A)=0.56     P(B)=0.26     P(A∩B)=0.17

Using formula ,

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\ P(A\cup B)=0.56+0.26-0.17=0.65

Hence, the probability that a moviegoer is either female or under age 25 = 0.65

6 0
2 years ago
The typical college freshman spends an average of μ=150 minutes per day, with a standard deviation of σ=50 minutes, on social me
Rashid [163]

Answer: The proportion of students spending at least 2 hours on social media equals 0.7257 .

Step-by-step explanation:

Given : The typical college freshman spends an average of μ=150 minutes per day, with a standard deviation of σ=50 minutes, on social media.

The distribution of time on social media is known to be Normal.

Let x be the number of minutes spent on social media.

Then, the probability that students spending at least 2 hours (2 hours = 120 minutes as 1 hour = 60 minutes) on social media would be:

P(x\geq120)=1-P(x

Hence, the proportion of students spending at least 2 hours on social media equals 0.7257 .

4 0
2 years ago
Raw milk is stored at a dairy farm in a refrigerated cylindrical vat 6.50 feet wide and 12.5 feet high. You measure the level of
morpeh [17]

Answer:

9.75ft

Step-by-step explanation:

Step one:

Given data

Dimension of the cylinder

Diameter= 6.5 ft

Height= 12.5 ft

You measure the level of milk to be 2.75 ft from the brim

Required

The dept of the milk in the cylinder

Step two:

to get the depth, we need to subtract the measured level from the brim from the height of the cylinder

= 12.5-2.75

=9.75 ft

Hence the Depth of the milk is 9.75ft

3 0
2 years ago
Two bakeries sell muffins that can be customized with different kinds of berries. Berry Bakery sells muffins for $14.50 a dozen,
vfiekz [6]
Yes. The original price of the dozen added to the price of berries (.5) multiplied by the amount(b) is the same equational representation to the right of the equal sign.
5 0
2 years ago
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