Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
7. Independent and Dependent Events
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Exercise 22 Page 781

Neither event affects the probability of the other, making them independent events.

4/15

Practice makes perfect

The two events described in this exercise are pulling a card from a stack of 15 and spinning the spinner. Neither of these events affects the probability of the other so these are independent events. If two events are independent, then the probability of both occurring is the product of their individual probabilities. P(AandB)=P(A)* P(B) Here, A is pulling a card with a label that is an odd number and B is spinning red or blue. Let's start by calculating the probability of pulling a card with a label that is an odd number. P(A)&=8/15 l←odd numbers ←all cards Let's now find the probability of landing on either red or blue section. P(B)&=2/4 l← red or blue sections ←all sections Finally, we multiply P(A) and P(B).

P(AandB)=P(A)* P(B)
P(AandB)= 8/15* 2/4
P(AandB)=8/15*1/2
P(AandB)=8/30
P(AandB)=4/15