Probability Mixed Review 1st Period

Front

What is the probability of both machines A and B malfunctioning if machine A has an 8% chance and machine B has a 12% chance of malfunctioning?

Back

0.0096

Front

In a class with 60 boys and 70 girls, what is the probability of selecting a boy or a student without an A if 12 boys and 14 girls have an A?

Back

0.89

Front

What is the probability that Ricardo spins red on the spinner and picks a red marble from a bag containing 2 red, 3 green, and 3 blue marbles?

Back

1/16

Front

In a class of 30 students with 17 boys and 13 girls, what is the probability of choosing a girl or an A student if 4 boys and 5 girls made an A?

Back

17/30

Front

What is the probability of rolling a 2 or a 5 on a single 6-sided die?

Back

1/3

Front

Define probability in the context of an event occurring.

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the formula for calculating the probability of two independent events A and B both occurring?

Back

P(A and B) = P(A) * P(B) for independent events.

Front

What is the difference between independent and dependent events in probability?

Back

Independent events do not affect each other's outcomes, while dependent events do.

Front

How do you calculate the probability of the union of two events A and B?

Back

P(A or B) = P(A) + P(B) - P(A and B).

Front

What is the probability of selecting a student who does not have an A from a class of 30 students where 9 students have an A?

Back

P(Not A) = 1 - P(A) = 21/30.