Question

At a certain high school, if a student is selected at random and asked what they plan to do after graduating, the probabilitydistribution for their response is given above, determine the following:

Answer 1

a) 0.6

b) 0.1

c) 0.4

Analysis:

a) P(Do not attend any college): As we know the probabilities of attending a 4-year college or a junior college, we can subtract to find the complementary probability.

P(Do not attend any college)= 1-0.2-0.2

P(Do not attend any college) = 0.6

b)P(Attend a technical school): This probability is given in the chart. It's 0.1

c) P(Attend a college): We add probabilities of attending a 4-year college or a junior college.

P(Attend a college): 0.2+0.2 = 0.4