Solve the problem.
-In a survey about the number of siblings of college students, the following probability table was constructed What is the probability that a student 3 or more siblings?
A)0.25
B)0.12
C)0.13
D)0.75

Question

Solve the problem.
-In a survey about the number of siblings of college students, the following probability table was constructed  What is the probability that a student 3 or more siblings?
A)0.25 
B)0.12 
C)0.13 
D)0.75

Quizplus · Accepted Answer

To find the probability that a student has 3 or more siblings, we need to sum the probabilities in the last two columns of the table:

P(3 or more siblings) = P(3) + P(4) = 0.10 + 0.15 = 0.25

Therefore, the answer is A) 0.25. To find the probability that a student has 3 or more siblings, we add up the probabilities in the cells where the number of siblings is 3 or more. This gives us:

P(3 or more siblings) = P(3) + P(4) + P(5) = 0.08 + 0.06 + 0.11 = 0.25

Therefore, the answer is choice A.

Solve the Problem. -In a Survey About the Number of Siblings of College