Binomial Geometric Poisson Distributions

The random variable, X has the binomial distribution X~B(9,0.25), find P(X=4)

• 0.1657

• 0.1168

• 0.2336

• 0.3504

The random variable T has binomial distribution T~(40,0.5). Find P(T≤12)

• 0.0032

• 0.0051

• 0.9968

• 0.0083

If X~Po(1.8), find P(2≤X≤4)

• 0.4285

• 0.7983

• 0.5008

• 0.7260

If X~Po(λ) and P(X=0) = 0.0025, find λ.

• 5

• 0

• 4

• 6

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

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

• Binomial Distribution

• Geometric Distribution

The probability that Jalen makes a free throw is 75%. What is the probability he makes his first free throw on his third attempt?

• geometcdf(3, 0.75)

• geometpdf(0.75, 3)

• geometpdf(3, 0.75)

• geometcdf(0.75, 3) 

Each observation falls into one of two categories: “success” or “failure”

• Geometric

• Binomial

• Both

• Neither

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 the tenth blood donor is the first donor with Type B blood?

• approximately 0.00

• 0.316

• 0.0385 

• 0.279

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

Only 4% of people have type AB blood.  What is the probability the first person with AB blood at the blood drive will be the 12th donor?

• .0001

• .0255

• .6382

• .2553