Sports World is open every day. Chelsey, Ivy, and James are the only employees at Sports World who can open the store. The following graph shows an incomplete probability model for who will open the store on any given day.
Answers
Given : Chelsey, Ivy, and James are the only employees at Sports World who can open the store. graph shows an incomplete probability model for who will open the store on any given day.
To find : probability that James will open the store on any given day
Solution:
From Graph :
Chelsey Probability = 0.3
Ivy Probability = 0.1
James Probability = ? = J
Chelsey, Ivy, and James are the only employees at Sports World who can open the store.
=> Sum of their probabilities = 1
=> 0.3 + 0.1 + J = 1
=> 0.4 + J = 1
=> J = 1 - 0.4
=> J = 0.6
James probability to open the store on any given day = 0.6
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