SOLUTION: Let X be a binomial random variable with n = 12 and p = .3. Find the following: a. P(X = 8)= .0078 b. P(X < 5)= c. P(X≥10)= d. P(4

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Question 1178902: Let X be a binomial random variable with n = 12 and p = .3. Find the following:
a. P(X = 8)= .0078
b. P(X < 5)=
c. P(X≥10)=
d. P(4 < X ≤ 9)=

Found 2 solutions by Solver92311, ikleyn:
Answer by Solver92311(821)   (Show Source):
You can put this solution on YOUR website!

b.

c.

d.

Do your own arithmetic.

John

My calculator said it, I believe it, that settles it

From
I > Ø

Answer by ikleyn(52781)   (Show Source):
You can put this solution on YOUR website!
.

You will save a lot of the gray substance of your mind, if,

instead of making these calculations by hand or by using a pocket calculator,

you will go to web-site https://stattrek.com/online-calculator/binomial.aspx

and will use free of charge online calculator there.

Also, see the lessons
    - Simple and simplest probability problems on Binomial distribution
    - Typical binomial distribution probability problems
    - How to calculate Binomial probabilities with Technology (using MS Excel)
    - Solving problems on Binomial distribution with Technology (using MS Excel)
    - Solving problems on Binomial distribution with Technology (using online solver)
in this site.

After reading these lessons, you will be able to solve such problems on your own,
which is your PRIMARY MAJOR GOAL visiting this forum (I believe).

SOLUTION: Let X be a binomial random variable with n = 12 and p = .3. Find the following: a. P(X = 8)= .0078 b. P(X < 5)= c. P(X≥10)= d. P(4 < X ≤ 9)=