7th lesson 10.6

An event is DEPENDENT, if...

• The first event has no affect on the next event

• The first event affects the second event

Is the event INDEPENDENT or DEPENDENT?

Amy plays card games. She picks a card at random. Then without putting the first card back, he picks a second card at random.

• Independent

• Dependent

Cindy flips a coin once, records the result, then flips it again. Does this situation represent INDEPENDENT or DEPENDENT events?

• Independent

• Dependent

Tom will randomly select from a treat bag containing 6 lollipops and 4 gum balls. Tom will select a treat, replace it, and then select a second treat.

• Independent

• Dependent

Sue will randomly select from a treat bag containing 6 lollipops and 4 gum balls. Sue will select a treat, not replace it, and then select a second treat.

• Independent

• Dependent

Is the event INDEPENDENT or DEPENDENT?

The spinner is spun twice. What is the probability that it lands on red first and then blue?

• Independent

• Dependent

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. Find P(both marbles are purple)

• 2/9

• 1/3

• 1/2

• 1/4

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter, not replacing it, and then picking a penny?

• 20/121

• 8/121

• 2/11

• 4/55

You spin this spinner 3 times.

Find the probability of these 3 events.

P(red, odd, 3)

• 1/216

• 1/72

• 1/12

• 1/36

Lisa flipped the same coin 3 times. What is the probability she obtained all tails?

• 1/2

• 1/16

• 1/4

• 1/8