Question

a marble is chosen from marbled number 13 to 22 find the probability of getting a marble having number 15 or 20 on it
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Answer 1

Answer:

0.2

Step-by-step explanation:

no of marbles chosen=10

P(getting no 15)=1/10=.1

P(getting no 20)=1/10=.1

P(getting no 15 or 20)=.1+.1=.2