Answer:
x= 7 and -8
Step-by-step explanation:
hope this helps!
You were on the right track. Here are two ways to go about it.
• By definition of conditional probability,
Pr[A | B] = Pr[A and B] / Pr[B]
Out of the total 100 participants in the survey, there are 18 people that both have a positive attitude and are over 35, so
Pr[positive and over 35] = 18/100
Out of the 100 pariticipants, 40 are over 35, so
Pr[over 35] = 40/100
Then the conditional probability you want is (18/100) / (40/100) = 18/40 = 9/20.
• There are 40 people over 35 in the survey. You want the probability that someone randomly chosen from this group has a positive attitude, of which there are 18. Hence the probability is 18/40 = 9/20.
Answer:
View graph
Step-by-step explanation:
The population refers to the whole set under study, while the sample is a representative part of that population.
A multiple is a number that can be gotten from multiplying a number by any number. For example, a multiple of 3 would have to be something that you can count by threes to get to. The same applies to 10, if you count by tens, any of those numbers that you get while counting by tens would be a multiple of 10.
Answer:
11:13
Step-by-step explanation:
