About 8% of males are colorblind. A researcher has a list of 12 men who have volunteered to be tested.
Use the TI-84 calculator set up to find the probability that at most three of the 12 men is colorblind.
this means zero, or one or two or three OR three or fewer.
P(x=0, 1, 2 or3) =P(x<3)=
2nd, VARS, scroll up to binompdf( (if you want to find the probability of one result)
use binomcdf( (if you want to find the probability of x or fewer successes among the n trials)
Enter the values for 'trials', 'p' (probability of success) and for 'x value' (the number of successes)
Keep your answer as a decimal, rounded to three places past the decimal point.