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RideAnS [48]
3 years ago
12

A pollster contacts 74 people in the 18-21 age bracket and finds that 38 of them respond and 36 refuse to respond. When 297 peop

le in the 22-29 age bracket are contacted, 278 respond and 19 refuse to respond. Suppose that one of the 371 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket OR someone who refused to respond. Round to 3 decimal places.
Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0

Answer:

0,250

Step-by-step explanation:

The probability that you looking for is sum of probability of getting someone in the 18-27age (74 persones) and probability to getting someone who refused (36 and 19 persones) - probability of getting some of 18-27 age who refused (36 persons).

The probability is:

P(a or b)= p(a)+p(b)-p(a&b)=74/371+(36+19)/371-36/371=0,199+0,148-0,097=0,250

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yKpoI14uk [10]

Answer:

r = 2

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Step-by-step explanation:

So first, we need to get this is order of: ax^2 + bx + c

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12/6

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Formula down below --

                                      |

                                     V

4 0
3 years ago
Ratio from men to women working for a company is 3 to 5.If there are 112 employees total, how many men work for the company?
Irina18 [472]

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