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Triss [41]
3 years ago
9

Of the 84 people who answered "yes" to a question, 14 were male. Of the 73 people that answered "no" to the question, 12 were ma

le. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male? Round to the nearest thousandth
Mathematics
2 answers:
ANTONII [103]3 years ago
8 0

Answer:

0.611

Step-by-step explanation:

First, we need to get the total of people who answered the question in the poll.

In this case:

84(yes) + 73(no) = 157 people

With this we can know the probability of the people who only answered yes in the question, which is:

84/157

Now, we need to know the number of these people, who were male, regardless of his answer.

14 said yes and 12 said no, so: 14 + 12 = 26

the probability of this is: 26/157

Now from this group, only 14 said yes and were male so:

14/157

Finally to get the probability of choose a person that answered yes or was male is:

P = P(male) + P(yes) - P(male and said yes)

P = 84/157 + 26/157 - 14/157

P = 96/157 = 0.611464968 and rounded to the nearest thousandth it would be 0.611.

pantera1 [17]3 years ago
4 0

Answer:

.611

Step-by-step explanation:

there were 84 people who answered yes plus an additional 12 men who said no. Add these up and you get 96. Divide that number by the number of people which is 157 and you get .611 rounded up.

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Answer:  Each screensaver costs $2 and each Otterbox costs $7.

Step-by-step explanation:

Let x = Cost of each screensaver and y = cost of each Otterbox.

As per given, 4x+3y=29       (i)

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Divide both sides of (i) by 2 and the multiply it by 3 on sides , we get

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Put value of x in (i), we get

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7 0
3 years ago
21 Last year Chelsea and Sonya took 236 pictures during Thanksgiving. This year Chelsea and Sonya each took the same amount of p
Leokris [45]

Let 'c' represent the number of pictures Chelsea took.

Let 's' represent the number of pictures Sonya took.

For last year's Thanksgiving, c + s = 236

For this year's Thanksgiving, let 'x' represent the number of photos taken in total. x = c + s, where c and s are two integers that are the same (c = s).

And we know that for both years, c + s + x = 500.

As we know that c + s is already 236 from last year, we can remove c + s from the equation in bold and replace it with 236 instead.

236 + x = 500.

Now we have to isolate the x term.

x = 500 - 236

x = 264.

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Answer:

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Step-by-step explanation:

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The factors of 5 are: 1, 5

The factors of 5 are: 1, 5

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Then the greatest common factor is 1.

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