About 30% of adults in United States have college degree.
(probability that person has college degree is p = 0.30).

If N adults are randomly selected, find probabilities that

1) exactly X out of selected N adults have college degree
2) less than X out of selected N adults have college degree
3) greater than X out of selected N adults have college degree

Choose your numbers for N and X (portion of N).

Solution Preview

Let N = 10 and X = 3.

1) The probability that exactly 3 out of 10 selected adults have a college ...

Solution Summary

We compute some probabilities involving a binomial distribution.

A foreman at a large plant estimates that parts are defective about 1% of the time. Use a binomialdistribution formula to determine the mean number of defective parts if the plant produces 25,000 parts in a week.

Solve for the probabilities of the following binomial distribution problems by using the binomial formula.
b. If n = 6 and p = .50, what is the probability that x >= 1?
c. If n = 9 and p = .85, what is the probability that x > 7?
d. If n = 14 and p = .70, what is the probability that x<=3?
Use Table A.2, Appendix A, to fin

Smith is a weld inspector at a ship yard. He knows from keeping track of good and substandard welds that 5% will be substandard. If he checks 300 of 7500 welds, what is the probability that he will find less than 20 substandard welds?
To solve the problems on the up-coming test we will use either the "normalcdf" or InvNorm" f

Find the indicated probabilities.
a. P (z > -0.89)
b. P (0.45 < z < 2.15)
Write the binomial probability as a normal probability using the continuity correction.
Binomial Probability Normal Probability
c. P ( x ≤ 56) P ( x < ? )
d. P ( x = 69 ) P ( ? < x < ?

The binomialdistribution is regularly used in business applications.
Why do you think this is the case?
Can you give me two examples from a professional environment.
Can you define binomialdistribution?

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 explain the steps to solve the problems.
The number of correct answers on a 10 questions test has Binomial Distribution with parameters n= 10 p= 0.40:
16- Find P( X > 7):
A) 0.43 B) 0.013 C) 0.23 D) 0.68
17- Find the expected number (mean) of correc

Answer the following:
(A) Find the binomial probability P(x = 6), where n = 15 and p = 0.60.
(B) Set up, without solving, the binomial probability P(x is at most 6) using probability notation.
(C) How would you find the normal approximation to the binomial probability P(x = 6) in part A? Please show how you would calculate

Consider a binomial experiment with n=10 and p=.10
a. Compute f(0)
b. compute f(2)
c. compute P(x less than or equal to 2)
d.compute P(x greater than or equal to 1)
e. compute E(x)
f. Compute Var(x) and o