Expected Value Answers

Flip 1’s number of successes:

Flip 2’s number of successes:

Flip 3’s number of successes:

Flip 4’s number of successes:

The minimum number of successes you can get in any flip of 4 coins is heads. The maximum is heads.

The minimum number of successes you can get in any flip of 4 coins is heads. The maximum is heads.

Which number of successes occurred most often in your 100 flips?

Let k be the number of successes (green) when the spinner is spun 4 times. The graph shows the distribution of k. Slide the slider to change p. What effect does this have on the distribution? Check all of the boxes that apply.

What is the probability of getting a vowel (a success) for the spinner shown?

Compute P(3 successes) for 5 spins of the spinner.

Find the binomial distribution for flipping a coin 3 times, where “heads” is a success.P(k successes) = nCk pk(1 – p)n – k P(0 successes) = 3C0(0.5)0(0.5)3 =

What is the probability that you will get “heads” no more than once out of 3 flips?P(0 successes) + P(1 success) =

Which probabilities do you need in order to calculate P(getting A on 2 or fewer spins)?

Suppose you spin the spinner 5 times. means “the probability of getting a vowel on exactly 3 of the spins.”

P(1 success) =

P(getting A on 2 or fewer spins) =

P(2 successes) =

P(3 successes) =