Which of the following are valid probability distributions for a discrete random variable?
Check all that apply.
O A
1 1 1 1
12 12 12 12.5
1 1 1 1 1
12 12 12 12'6
1 1 1 1 1
B.
55. 5.5.5
c.
1 1 1 1
6 5 4 3
OD.
1 1 137
:"560
ОЕ
1 1 1 1 1
Ž. 16 32 64 128 128

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

What is the sum of these mixed numbers 2 1/8 + 4 3/8

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол