James probability to open the store on any given day = 0.6
What is probability ?
Probability is the number of ways occurrence of a certain event. The total number of possible outcomes. For example, the probability of Tossing a coin and it being heads is half because there is 1 way of getting a head and a tail the total number of possible outcomes is 2 heads and tails.
In the given question
Chelsey's Probability = 0.3
Ivy's Probability = 0.1
James's Probability = x
Sum of all their probabilities = 1
∴ 0.3 + 0.1 + x = 1
0.4 + x = 1
x = 1 - 0.4
x = 0.6
So, The probability that james will open the store on any given day = 0.6
Learn more about probability :
https://brainly.com/question/743546
#SPJ5