Mathematics, 05.05.2020 14:13, ayoismeisalex

There are 10 balls in a bag numbered from to 10. Three balls are selected at random without replacement.
a. How many different ways are there of selecting the three balls?
b. What is the probability that one of the balls selected is the number 5?
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There are 10 balls in a bag numbered from to 10. Three balls are selected at random without replacem...