James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The

Question

Taya2010 [7]

3 years ago

6

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.

Mathematics

2 answers:

den301095 [7] · Answer 1 · 2022-03-16T15:11:14+03:00

den301095 [7]3 years ago

6 0

Answer:

D. P(male | buys lunch) = 0.4 and P(male) = 0.3.

Step-by-step explanation:

tamaranim1 [39] · Answer 2 · 2022-03-16T14:06:24+03:00

tamaranim1 [39]3 years ago

3 0

46 + 176 = 222 males
254 + 364 = 518

Which is total of 740 people.

The probability of being male is 0.3

46 + 254 = 300 that bring lunch
176 + 264 = 440 that buy their lunch
P(male | buy lunch ) = 0.4

Answer D