Question

Step by step please.

It was found that 60% of American victims of health care fraud are senior citizens. If 10 victims are randomly selected, find the probability that at least 4 are senior citizens.

Answer 1

=1-{0.0001+0.0016+0.0106+0.0425}

=0.9452

or by using Excel =1-BINOMDIST(3,10,0.6,TRUE)

X	P(X)
0	0.0001
1	0.0016
2	0.0106
3	0.0425