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Vilka [71]
4 years ago
12

Let's say you are playing a coin-tossing game with a friend. You toss the same coin 500 times, and 400 times it comes up heads.

Would this be normal? What could explain it?
Mathematics
1 answer:
zimovet [89]4 years ago
8 0
Yes, because there is a 50 50 chance that it can land head or tails. 
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A large furniture company claims that 65% of all individuals who buy chairs from its stores choose wood chairs, 20% choose plast
Nataly [62]

Answer:

In the sample, 61% chose wooden chairs (4% less than that claimed by the company), 24.2% chose plastic chairs (4.2% more than that claimed by the company), and 14.8 % chose metal chairs (0.2% less than what the company claimed). Therefore, given that these are differences of less than 5%, we can affirm that these samples are consistent with what the company said.

Step-by-step explanation:

Given that a large furniture company claims that 65% of all individuals who buy chairs from its stores choose wood chairs, 20% choose plastic chairs, and 15% choose metal chairs, and to investigate this claim researchers collected data from a random sample of the companys customers, whose results were 305 wood, 121 plastic, and 74 metal, to determine if the data from the sample consistent with the companys claim the following calculations should be performed:

305 + 121 + 74 = 500

500 = 100

305 = X

305 x 100/500 = X

30,500 / 500 = X

61 = X

500 = 100

121 = X

121 x 100/500 = X

12,100 / 500 = X

24.2 = X

100 - 61 - 24.2 = X

39 - 24.2 = X

14.8 = X

Therefore, in the sample, 61% chose wooden chairs (4% less than that claimed by the company), 24.2% chose plastic chairs (4.2% more than that claimed by the company), and 14.8 % chose metal chairs (0.2% less than what the company claimed). Therefore, given that these are differences of less than 5%, we can affirm that these are samples that are consistent with what the company said.

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3 years ago
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rosijanka [135]

Answer:

D all the real numbers greater than or equal to -3

Step-by-step explanation:

8 0
3 years ago
Four more than the quotientof 25 divided by 5
mel-nik [20]

Step-by-step explanation:

25/5 + 4 = 5 + 4 = 9

is that what you needed ?

4 0
2 years ago
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Is it possible for two different linear functions to have the same y-intercept? Explain.
Lesechka [4]
No its not possible I cant explain right now because I'm in class but I will later
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Which recursive formula can be used to generate the sequence shown, where f(1) = 9.6 and n > 1?
galben [10]

This is a Geometric sequence with first term 9.6 and common ratio -0.5.

an = an-1 *- 0.5

6 0
3 years ago
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