3 years ago

Using the tree diagram, what is the probability that a player will have to Repeat Level 1?

2 answers:

7 0

0.7×0.3×2=0.42

Probability that the player will have to repeat level 1 are miss-hit+hit-miss

miss-hit=0.7×0.3=0.21
hit-miss=0.3×0.7=0.21

0.21+0.21=0.42

aev [14]3 years ago

4 0

That would be 0.3 * 0.7 + 0.7 * 0.3 = 0.21 + 0.21 = 0.42

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