Identify each variable in the formula for the binomialprobability density function. Also, explain what the fraction: n! / (n-x)!x! calculates.

Solution Summary

The solution identifies each variable in the formula for the binomial probability density function. Also, explain what the fraction: n! / (n-x)!x! calculates.

h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases, use the normal approximation to the binomial to find the probability that more than 39 bought a h-p computer

Please use words to describe the solution, not just symbols. (basically, explain what is going on in addition to an answer) Use a math symbol editor where appropriate.
Problem 1:
Write a program to compute binomial probabilities and compare the results with the Poisson approximation for the following cases:
a) P(X = 2)

50% probability a customer will walk through the door needing customer service. What percent of the time would you expect less than 4 customers out of twenty will require customer service?
What formula would you use to get this solution?

Dan must sell 3 diamond rings this week to meet his quota. He is meeting up with 5 possible customers, each who wants a different ring. If he has a 30% chance of making the sale with each customer, what is the probability that he will meet his quota by tomorrow.
Now suppose 3 of his customers want the same ring, and they wil

According to an Internet posting, 80% of adults enjoy drinking beer. If a group of 3 adults is selected at random, find the probability that none of them enjoy drinking beer.
Place your answer, rounded to three decimal places, in the blank. Simply provide the numerical value. For example, 0.123 would be a legitimate entr

Let X be a random variable representing the sum of trials. Then X is a binomial random variable if all of the following are satisfied except
a. no two trials can have the same outcome
b. p, the probability of "success" on any trial is the same for all trials
c. each trial has exactly two possible outcome

The unemployment rate in a city is 13%. Find the probability that more than 2 out of 10 people from this city sampled at random are unemployed. Round your answer to four decimal places.

A gardner plants 12 flowers. It is perdicted that on an average, 15% of the flowers planted will die during the first winter. Using the information above, please answer the following questions:
1. What type of probability distribution is presented?
2. Find the probability that EXACTLY 5 of the flowers will die in the first

Binomial Distribution
1. State a question that can be answered in a "binomial" manner, such as Do you normally read the front page of a newspaper at least 4 times a week? (yes or no).
Determine ahead of time whether answers should be recorded or counted as a "yes " or "no".
2. Take a survey. Ask 22 individuals to respo