6+4• (5-7)^2
(5-7)^2
-2^2
4
6+4+4
=14
Answer:
B. x^2
Step-by-step explanation:
Answer: Our required probability is 0.11.
Step-by-step explanation:
Since we have given that
Number of workers in first shift = 21
Number of workers in second shift = 15
Number of workers in third shift = 13
We need to find the probability of choosing exactly two second shift workers and two third shift workers.
So, it becomes,

Hence, our required probability is 0.11.