Geometric vs Binomial AP Stats

What’s the probability you find a bad one within the first 10 you examine?

• Binomial Distribution

• Geometric Distribution

About 8% of males are colorblind. A researcher needs some colorblind subjects for an experiment and begins checking potential subjects. 

a) On average, how many men should the researcher expect to check to find one who is colorblind?

• Binomial Distribution

• Geometric Distribution

About 8% of males are colorblind. A researcher needs some colorblind subjects for an experiment and begins checking potential subjects. 

What’s the probability that they won’t find anyone color-blind among the first 4 men they check?

• Binomial Distribution

• Geometric Distribution

About 8% of males are colorblind. A researcher needs some colorblind subjects for an experiment and begins checking potential subjects. 

What’s the probability that the first colorblind man found will be the sixth person checked?

• Binomial Distribution

• Geometric Distribution

About 8% of males are colorblind. A researcher needs some colorblind subjects for an experiment and begins checking potential subjects. 

d) What’s the probability that they find someone who is color-blind before checking the 10th man?

• Binomial Distribution

• Geometric Distribution

When rolling a fair die 100 times, what is the probability of rolling a "4" exactly 25 times? Is this an example of binomial or geometric?

• binomial

• geometric

If you want a certain number of successes in a set amount of trials, use the ????? model.

• geometric

• binomial

• normal

• calculator

Is this binomial experiment? Shuffle a deck of 52 cards. Turn over the top card. Put the card back in the deck, shuffle again. Repeat the process 50 times. Let X = the number of aces you observe.

• Yes

• No, the trials are not independent.

• No, there are more than 2 outcomes

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood? (Hint: It may help to use the complement.)

• 0.088

• 0.697

• 0.214

• 0.303

Which kind of sequence has a common ratio?

• Arithmetic

• Geometric