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Natasha2012 [34]
3 years ago
10

Home sizes in Anytown, USA have a mean of 2400 square feet and a standard deviation of 450 square feet. What is the probability

that a random sample of 50 homes in Anytown, USA has mean square footage less than 2200 square feet
Mathematics
1 answer:
lesya [120]3 years ago
7 0

Answer:

0.00084

Step-by-step explanation:

We are given that

Mean,\mu=2400 square feet

Standard deviation, \sigma=450square feet

n=50

We have to find the probability that a random sample of 50 homes in Anytown, USA has mean square footage less than 2200 square feet.

P(x

P(x

Using the formula

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

P(x

P(X

Hence, the probability that a random sample of 50 homes in Anytown, USA has mean square footage less than 2200 square feet=0.00084

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Answer:

the answer is 9.69 or if no decimals 10

Step-by-step explanation:

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If y=8 when x =3, find y when x=45
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Let's make things easier by simplifying things.

y = 8 and x = 3 is more likely to be understood as a ratio. So for the rest of the answer, their relationship would be represented as y:x

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The problem would be finding y when x = 45

Let us proceed on using the previous equation and substitute x with 45 which would look like this:

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Ratios can also be expressed as fractions which would make things more understandable and easy to solve. So the new form of our equation would be like this:

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Another way of looking at the problem, especially problems like these, is to take the whole question or statement as an equation. it would probably look like this:

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This would make you understand what approach you can use to solve the given problem.
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Answer:

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Answer:

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