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melisa1 [442]
2 years ago
12

Members of a bowling league play thousands of combined games over the course of a season. Suppose that the scores of individual

games have a known standard deviation of σ=30 pins. Isla plans on taking a random sample of n games from this population to make a 95% confidence interval for the mean score. She wants the margin of error to be no more than 10 pins. Which of these is the smallest approximate sample size required to obtain the desired margin of error?
9 games
30 games
35 games
43 games
55 games
Mathematics
1 answer:
just olya [345]2 years ago
5 0

Answer: 35

Step-by-step explanation:

Got it right on khan

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I need help ASAP, due in an hour. Will give 5 stars and brainiest to the first person.
Zarrin [17]

Answer:

5n is a term= true

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these are the correct answers

Step-by-step explanation:

these are the wrong ones

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7 0
3 years ago
He coordinates of the vertices of △DEF are D(2, −1) , E(7, −1) , and F(2, −3) .
miv72 [106K]
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A refrection across the y-axis results in the change in sign of the x-coordinates of the pre-image and the image while the y-coordinate of the image remains the same as that of the pre-image.

A refrection across the y-axis of </span>△DEF with vertices D(2, −1) , E(7, −1) , and F(2, −3) will result in and image with vertices (-2, -1), (-7, -1) and (-2, -3) respectively.

Notice that the x-coordinate of the final image △D′E′F′ with vertices <span>D′(0, −1) , E′(−5, −1) , and F′(0, −3) is 2 units greater than the vertices of the result of recting the pre-image across the y-axis.

This means that the result of refrecting the pre-image was shifted two places to the right.

Therefore, </span>the sequence of transformations that maps △DEF to △D′E′F′ are reflection across the y-axis and translation 2 units right.
5 0
3 years ago
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Alecsey [184]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Mariana [72]

Answer:

A

Step-by-step explanation:

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antiseptic1488 [7]

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