The probability that an individual is left handed is 0.12, there are 39 students in the class.?

what is the probability of finding
a) 6 left handers
b) fewer than 6 left handers
c) 26 right handers
d) all 39 right handers
how do I do this on the calculator??

1 Answer
May 3, 2018

I think the answer is b)

Explanation:

0.12 probabilty means 12 students are left handers among 100 students.
In this problem, there are 39 students. So, the ratio is like this:
12:100=x:39
From this equation, x is 4.68~~5
It implies that left hander students can be less than 6.

P.S. It is my opinion. It can be good that someone else controls.