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beks73 [17]
3 years ago
15

In a poll students were asked to choose which of six colors was there favorite. The circle graph shows how the students answered

. If 20,000 students participated in the poll, how many chose red when red is 41%
Mathematics
1 answer:
miskamm [114]3 years ago
3 0

Answer:

8200

Step-by-step explanation:

20,000/100 = 200

(41)(200) = 8200

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A company makes wax candles in the shape of a cylinder. Each candle has a diameter of 4 inches and a height of 8 inches. How muc
Leni [432]
The correct answer is 18086.4
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3 years ago
A dog breeder would like to know how many Dalmatian puppies are typically born in a litter. He conducts some research and select
podryga [215]

Answer:

c. 6.2 ± 2.626(0.21)

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 101 - 1 = 100

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 100 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.626

The confidence interval is:

\overline{x} \pm M

In which \overline{x} is the sample mean while M is the margin of error.

The distribution of the number of puppies born per litter was skewed left with a mean of 6.2 puppies born per litter.

This means that \overline{x} = 6.2

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.626\frac{2.1}{\sqrt{101}} = 2.626(0.21)

In which s is the standard deviation of the sample and n is the size of the sample.

Thus, the confidence interval is:

\overline{x} \pm M = 6.2 \pm 2.626(0.21)

And the correct answer is given by option c.

5 0
3 years ago
A field is 3654 feet long what is the length of the field in yards
charle [14.2K]

Answer:

1,218 yd.

Step-by-step explanation:

3 ft. = 1 yd. 3,654 ÷ 3 = 1,218

3 0
3 years ago
African elephants can eat up to 500 pounds of vegetation in one day. How many pounds of vegetation could an elephant eat in a we
Murrr4er [49]

Answer:

they would eat 3500 pounds of food in 1 week

Step-by-step explanation:

its simple math just multiply 500 by 7 and you would get 3500

5 0
2 years ago
Find the values of the unknown angles marked with letters. 50 points!!!!!!!
IceJOKER [234]

Answer:

  • a = 115°, alternate interior angles are congruent
  • b = 70°, same as above
  • c = 180° - 115° = 65°, angles forming a straight angle are supplementary
  • d = 180° - 70° = 110°, same as above

3 0
3 years ago
Read 2 more answers
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