# Solve Probability Problems

In what follows, S is the sample space of the experiment in question and E is the event of interest.

n(S) is the number of elements in the sample space S and n(E) is the number of elements in the event E. An examination of the sample space shows that there is one "3 of diamond" so that n(E) = 1 and n(S) = 52.

What two sections would have to be divided to find P(B|A)? In New York State, 48% of all teenagers own a skateboard and 39% of all teenagers own a skateboard and roller blades.

What is the probability that a teenager owns roller blades given that the teenager owns a skateboard?

In the United States, 56% of all children get an allowance and 41% of all children get an allowance and do household chores.

## Solve Probability Problems Interaction Design Thesis Project

What is the probability that a child does household chores given that the child gets an allowance?

What is the probability that a student takes Spanish given that the student is taking Technology?

Solution: Summary: The conditional probability of an event B in relationship to an event A is the probability that event B occurs given that event A has already occurred.

Solution: Example 3: At Kennedy Middle School, the probability that a student takes Technology and Spanish is 0.087.

The probability that a student takes Technology is 0.68.

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