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Lady bird [3.3K]
2 years ago
9

NEED HELP!!!!!!!!!!!!!!!!!!!! anybody know???????????????????????????

Mathematics
1 answer:
aleksandrvk [35]2 years ago
7 0

Answer:

530.66.

Step-by-step explanation:

The area formula for a circle is \pi r^{2} .

We will use 3.14 for pi.

This is simple- we put the numbers in the formula.

3.14 * 13^{2} = 530.66.

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Answer:

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A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:
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Answer:

A.

mean = 724.2

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B.

Range = 85

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C.

Interval = [665.6, 782.8]

Step-by-step explanation:

Number of samples n = 25

Summation X= 769 + 691 + 699 +730+711+ 765+ 702 718 +719 +712+ 768 +688 +757+695 768 +735 +709 +758 +708+ 693 +736 700+ 687 +772 +715 = 18105

A.

1. Mean = 18105/25

= 724.2

2. Median is the middle value when arranged from the least value to the highest = 715

3. Mode is the number with the highest frequency = 768 (occured two times)

B.

1. Range = highest value - lowest value

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= √20604/25-1

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Please check attachment for the full calculation of the standard deviation

C.

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Problem page the ratio of men to women working for a company is 5 to 8 . if there are 169 employees total, how many women work f
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Answer:

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answers in degrees.

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