There are four possible outcomes in an experiment The experi

There are four possible outcomes in an experiment. The experiment was performed 600 times, and the results are given in the below How many times did the first outcomes actually happen? 23 138 125 It cannot\' be determined. There is not enough information given 462

Solution

Q7.

experiment has 4 possible outcomes. Sum of the probability of all occurence will be always 1 for any event.
P(1) = 0.23
P(2) = 0.20
P(3) = 0.42
P(4) = ??

We know that P(1) + P(2) + P(3) + P(4) = 1 => P(4) = 1 - 0.23 - 0.20 -0.42 = 0.15

Possible outcomes actually happen for first event = 0.23*600 = 138

[ANSWER] b. 138