James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. the results are shown below. bring lunch: 46 males, 254 females buy lunch: 176 males, 264 females the events "male” and "buys lunch” are not independent because p(buys lunch | male) = p(male) = 0.4. p(male | buys lunch) = p(male) = 0.3. p(buys lunch | male) = 0.3 and p(male) = 0.4. p(male | buys lunch) = 0.4 and p(male) = 0.3.

The correct option is 4.

Step-by-step explanation:

Given information:

Bring lunch : 46 males, 254 females

Buy lunch   : 176 males, 264 females

Total number of peoples is

Total number of males is

The probability of male is

Since probability of males is 0.3, therefore options A and C are incorrect.

Total number of persons who buys lunch is

The probability of persons who buys lunch is

We need to find the probability of P(male | buys lunch).

According to the conditional probability, we get

P(male | buys lunch)

P(male | buys lunch)

P(male | buys lunch)

Therefore the correct option is 4.

answer: 20

step-by-step explanation: