Unit Test
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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?

Explanation:

Please, find attached a figure with the complete question, including the probability distribution.

The graph does not permit to read exact values, thus you must estimate.

P(X ≥ 8) = P(X=8) + P(X=9) + P(X=10)

rectangle that is ther answer you

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb