Binomial Table
Practice Problems
NOTE: Creating the table is one exercise where rounding before you're done calculating will mess you up. In particular, don't round your result for Part B until you've calculated A x B.
Remember, rounding is something you do when you report your result, not during calculations. Click the Right Arrow to begin.
Problem 1
 n = 3
 p = 0.32
(Click Down Arrow for the solution)
0  1  2  3  

A =  1  3  3  1 
B =  0.3144  0.1479  0.0696  0.0327 
Total = AxB =  0.3144  0.4439  0.2088  0.0327 
(Click Down Arrow to answer questions about the probabilities)
Problem 1
n = 3, p = 0.32
Probability Questions
 What's the probability of getting an odd number (i.e., X = an odd number)?
 What's the probability of getting 2 or more?
 What's the probability of getting 0?
(Click Down Arrow for solutions)
Probability Questions
 What's the probability of getting an odd number (i.e., X = an odd number)?
 prob(X =1 or 3) = 0.4439 + 0.0327 = 0.4766
 Note: I'm okay with using the rounded numbers from the table here.
 What's the probability of getting 2 or more?
 prob(X =2 or 3) = 0.2088 + 0.0327 = 0.2415
 What's the probability of getting 0?
 prob(X =0) = 0.3144
(Click Right Arrow for next problem)
Problem 2
 n = 3
 p = 0.65
(Click Down Arrow for the solution)
0  1  2  3  

A =  1  3  3  1 
B =  0.0428  0.0796  0.1478  0.2746 
Total = AxB =  0.0428  0.2388  0.4436  0.2746 
(Click Down Arrow for probability questions)
Problem 2
n = 3, p = 0.65
Probability Questions
 What's the probability of getting 3?
 What's the probability of getting less than 3?
 What's the probability of getting 2 or less?
(Click Down Arrow for the solutions)
Probability Questions
 What's the probability of getting 3?
 prob(X=3) = 0.2746
 What's the probability of getting less than 3?
 prob(X=everything but 3) = 1  0.2746 = 0.7254

What's the probability of getting 2 or less?
 Same as less than 3.
 prob(X=2 or 1 or 0) = 0.7254
(Click Right Arrow for next problem)
Problem 3
 n = 4
 p = 0.53
(Click Down Arrow for Solution)
0  1  2  3  4  

A =  1  4  6  4  1 
B =  0.0487  0.0550  0.0620  0.0699  0.0789 
Total =  0.0487  0.2201  0.3723  0.2798  0.0789 
Problem 3
n = 4, p = 0.53
(Click Down Arrow for Probability Questions)
Probability Questions
 What's the probability of getting 2 or 4?
 What's the probability of getting an odd number?
 What's the probability of getting less than 4?
(Click Down Arrow for solutions)
Probability Questions
 What's the probability of getting 2 or 4?
 prob(X = 2 or 4) = 0.3723 + 0.0789 = 0.4512
 What's the probability of getting an odd number?
 prob(X = 1 or 3) = 0.2201 + 0.2798 = 0.4999
 What's the probability of getting less than 4?
 prob(X = everything but 4) = 1  0.0789 = 0.9211
(That's all, folks)
Practice Binomial Table Problems
By smilinjoe
Practice Binomial Table Problems
 595