I think I can help with this prob i did this a few weeks back
The probability that a person could not give up cell phone but could give up television can be expressed as the probability of No could give up cell phone and Yes could give up television, P(NnY) = 0.39
<u>From the two way probability table given</u> :
- Let, probability that a person could not give up cell phone = N
- Probability that a person could give up television = Y
The intersection of Y and N = P(Y n N)
- The probability value at the intersection point using the table given ls 0.39
Therefore, the probability of YnN is 0.39
Learn more :brainly.com/question/18153040
Answer:
The number of children was 170 and adults was 368.
Step-by-step explanation:
To clarify we'll call children by 'c' and adults by 'a'. The amount of people in the pool should be the sum of adults and children, so:
a + c = 538
The receipts for the adimission should total the amount of tickets from children and adults multiplied by the price of each ticket, so:
1.75*c + 2.25*a = 1125.5
We now have two equations and two variables. Using the first equation we can isolate the 'a' variable and use it on the second equation to find an answer. We then have:
a + c = 538
a = 538 - c
Using it on the second equation:
1.75*c + 2.25*(538-c) = 1125.5
1.75*c + 1210.5 - 2.25*c = 1125.5
1.75*c - 2.25*c = 1125.5 - 1210.5
-0.5*c = -85
c = -85/(-0.5) = 170
Using this value on the first equation:
a = 538 - 170 = 368
it's 0.4 while it may look like 4% it's actually 40% of 1
The total degrees of a triangle is 180.
So
37+63=100
And well
180-100=80
U=80
