Question 1204532: 3) Emploved Women If 60% of all women are employed outside the home, find the probablity that in a sample of 9 women,
a. Exactly 6 are employed.
b. At least 4 are employed.
c. Fewer than 3 are employed outside the home.
Answer by ikleyn(52794)   (Show Source):
You can put this solution on YOUR website! .
These are standard problems on binomial distribution.
(a) P = P(n=9; k=6; p=0.6).
(b) P = P(n=9; k >= 4; p=0.6).
(c) P = P(n=9; k < 3; p=0.6).
Go to web-site https://stattrek.com/online-calculator/binomial and use online (free of charge) calculator there.
Its interface is very simple, while its output is very convenient, so even a beginner student can easily work with it.
It facilitates using many-addend formula, so calculations are really easy and fast.
Alternatively, you may use standard function binomcfd on your regular TI-83/84 calculator.
About this function and how to use it read from this web-page https://www.statology.org/binompdf-vs-binomcdf/
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To learn on solving typical problems on calculations binomial probabilities, look into the lessons
- Elementary operations on sets help solving Probability problems
- Elementary operations on sets help solving Probability problems - REVISITED
in this site.
You will find there many other similar (and different) solved problems.
Learn the subject from there.
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