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3 years ago

A normally distributed population has a mean of 250 pounds

Mathematics

1 answer:

Dima020 [189]3 years ago

6 0

Answer: 0.9746

Step-by-step explanation:

Given : A normally distributed population has a mean of 250 pounds and a standard deviation of 10 pounds.

i.e. $\mu=250$ $\sigma=10$

Sample size : n= 20

Let $\overline{x}$ sample mean values.

Then, the probability that this sample will have a mean value between 245 and 255 be

$P(245$

Hence , the probability that this sample will have a mean value between 245 and 255 is 0.9746 .

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elena55 [62]

Step-by-step explanation:

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2 years ago

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natta225 [31]

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Step-by-step explanation:

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3 years ago

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides

cupoosta [38]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

(pls also provide an explanation for how i do this)

Marizza181 [45]

Answer:

slope = $\frac{3}{4}$

Step-by-step explanation:

Calculate the slope m using the slope formula

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2 years ago

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masha68 [24]

Answer:

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Step-by-step explanation:

Given:

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To determine a numerical value for the expression, simply substitute the value of "x" into the expression and simplify the expression, if necessary, to determine a specific number for the expression provided.