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Rainbow [258]
3 years ago
14

Jermaine has entered a bowling tournament. To prepare, he bowls five games each day and writes down the score of each game, alon

g with the mean of five scores. He is looking at the scores from one day last week and finds that one of the numbers has accidentally been erased. The four remaining scores are 210, 238 , 264 , 262 and . The mean score of the five games is 252 . What is the missing score? The missing score is .
SAT
1 answer:
Rudiy273 years ago
3 0

Answer:286

Explanation:

(974+x)÷5=252

Multiply both sides by 5

974+x=1260

X=1260-974

X=286

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Answer:

Neptune’s axis of rotation is tilted 28 degrees with respect to the plane of its orbit around the Sun, which is similar to the axial tilts of Mars and Earth. This means that Neptune experiences seasons just like we do on Earth; however, since its year is so long, each of the four seasons lasts for over 40 years.

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a study comes out about tomato sauce. The demand curve moves to the left. What can you deduce from the study?
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To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians
yKpoI14uk [10]

The standard error of the difference of sample means is 0.444

From the complete question, we have the following parameters

<u>Canadians</u>

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  • Mean = 4.6
  • Standard deviation = 2.9

<u>Americans</u>

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  • Mean = 5.2
  • Standard deviation = 1.3

The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.

This is represented as:

SE = \frac{\sigma}{\sqrt n}

The standard error of the Canadian sample is:

SE_1 = \frac{2.9}{\sqrt{50}}

So, we have:

SE_1 = 0.41

The standard error of the American sample is:

SE_2 = \frac{1.3}{\sqrt{60}}

So, we have:

SE_2 = 0.17

The standard error of the difference of sample means is then calculated as:

SE= \sqrt{SE_1^2 + SE_2^2}

This gives

SE= \sqrt{0.41^2 + 0.17^2}

SE= \sqrt{0.197}

Take square roots

SE= 0.444

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Read more about standard errors at:

brainly.com/question/6851971

5 0
2 years ago
Which of the following groups of children are least likely to be abused than others
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