Conditional Probability Practice

A bucket contains 50 lottery balls numbered 1-50. One is drawn at random.

P(multiple of 6 | 2-digit number)

A bucket contains 50 lottery balls numbered 1-50. One is drawn at random.

P(multiple of 5 | odd number)

Cards numbered with integers 75-100 are sorted into two different categories. Numbers that are even, or numbers greater than 84.

What is the probability of selecting an even number, given that is is greater than 84?

• 0.50

• 0.60

• .73

• 0.31

Cards numbered with integers 75-100 are sorted into two different categories. Numbers that are even, or numbers greater than 84.

What is P(Over 84 | Even)?

• 62%

• 31%

• 50%

• 57%

A month of the year is randomly chosen. What is the probability of selecting a month with over 30 days, given that is starts with an A?

The spinner is spun one time. Calculate the probability.

P(black | A)

• 33%

• 8.3%

• 50%

• 24%

The spinner is spun one time. Calculate the probability.

P(C | white)

• 17%

• 50%

• 33%

• 28%

The spinner is spun one time. Calculate the probability.

P(black | B or E)

• 60%

• 40%

• 50%

• 25%

The table below represents the number of NFL teams that won or lost their first game of the season.

P(either AFC or NFC won)

The table below represents the number of NFL teams that won or lost their first game of the season.

P(NFC | won)