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Reptile [31]
4 years ago
5

The distribution of images on the pages of a 350-page catalog is found to follow normal distribution with a mean of 32 images pe

r page and a standard deviation of 8 images per page. Which conclusion does this information best support? Approximately 238 pages fall within the first standard deviation of the mean. Approximately 238 pages fall within the second standard deviation of the mean. Approximately 238 pages fall within the third standard deviation of the mean. Approximately 346 pages fall within the second standard deviation of the mean. Approximately 332 pages fall within the third standard deviation of the mean. NextReset
Mathematics
1 answer:
WITCHER [35]4 years ago
5 0
<span>Approximately 238 pages fall within the second standard deviation of the mean. The 68-95-99.7 rule gives that in a normal distribution, about 68% of the data fall within the first standard deviation, and 350*0.68=238. 350*0.95=332, so about 332 pages fall within the second standard deviation, and 350*99=348.95 pages fall within the third standard deviation.</span>
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Answer:

Liz is correct

Step-by-step explanation:

Given

See attachment for complete question

Required

Who is correct? Daniel or Liz

From the attached data, we have:

Time: 1\frac{3}{4},\ 2\frac{1}{2},\ 2,\ 2\frac{3}{4},\ 1,\ 1\frac{3}{4},\ 1\frac{1}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4},\ 2,\ 2

The total number of students is:

n = 12

The data that represents  2\frac{1}{2} or more is:

Time: 2\frac{1}{2},\ 2\frac{3}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4}

<em>The frequency of this is 5</em>

<em>The frequency that represents </em>2\frac{1}{2}<em> or less will be 7</em>

<em></em>

This means that less than half spend 2\frac{1}{2} or more

and more than half spend 2\frac{1}{2} or more

<em>Hence, Daniel is incorrect. Liz is correct</em>

4 0
3 years ago
A 6 sided cube with sides labeled 1,2,3,4,5 and 6 is rolled 50 times. What is a good prediction for the number of times 5 will b
Liono4ka [1.6K]

Answer:

A good prediction is that the number 5 will be rolled 8 times

Step-by-step explanation:

Here, we want to get the number of times 5 would occur in a roll of 50

firstly, we need the probability of having a 5 come up

To do this, we have to divide the number of 5’s by the count of possible numbers

We have this simply as 1/6

Now, we have to multiply this by 50

we have this as;

1/6 * 50 = 8.333

This is approximately 8

so we have it that in 50 rolls, we can have the number 5 coming up 8 times

7 0
3 years ago
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Answer:

Since the total amount you have to pay for the purchase on the credit card A is lower, then it's the best option.

Step-by-step explanation:

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For credit card B:

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Answer:

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The answer is TRUE.

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