Geometric and Poisson Distributions

Given 13% of people are left-handed.  What is the probability the first left-handed person will be the sixth person polled?  

• .0564

• .1116

• .0001

• .0648

A certain maternity wing has a mean number of 6 babies born a day.  What is the probability of 7 babies being born in this maternity wing on any given day?

• .8571

• .1490

• .1377

• .0213

In a Poisson distribution, if the mean is 4, what is the probability of getting exactly 2 occurrences in a given interval?

• 0.512

• 0.367

• 0.245

• 0.146

The owner of a pet store is trying to decide whether to discontinue selling specialty clothes for pets. She suspects that only 4% of the customers buy specialty clothes for their pets. What is the probability that she does NOT sell a garment until the 7th customer? Assume each customer is independent.

• 0.033

• 0.027

• 0.0313

• Not here

The probability that Jalen makes a free throw is 75%. He takes shots until he makes one. 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)

The owner of a pet store is trying to decide whether to discontinue selling specialty clothes for pets. She suspects that only 4% of the customers buy specialty clothes for their pets. What is the probability that she does NOT sell a garment until the 7th customer? Assume each customer is independent.

• 0.033

• 0.027

• 0.0313

• Not here

In a Poisson distribution, if the mean is 6, what is the probability of getting less than 3 occurrences in a given interval?

• 0.1515

• 0.1518

• 0.1517

• A

In a Poisson distribution, if the mean is 3, what is the probability of getting more than 5 occurrences in a given interval?

• 0.1841

• 0.1845

• 0.1848

• 0.1847

In a Poisson distribution, if the mean is 5, what is the probability of getting exactly 4 occurrences in a given interval?

• 0.1755

• 0.1758

• 0.1752

• 0.1757

In a Poisson distribution, if the mean is 7, what is the probability of getting at least 6 occurrences in a given interval?

• 0.1335

• 0.1336

• 0.1337

• 0.1338