In class of 147 students, 97 are taking math (M), 73 are taking science (S), and 52 are taking both math and science. If one student is picked at random, what is the probability of choosing a student who is not taking math or science?
52/147
73/147
31/147
125/146
2 answers
The answers is 31/147
number(math OR Science) = number(math) + number(science) - number(math AND science)
= 97 + 73 - 52 = 118
let the number taking neither be n
118 + n = 147
n = 29
prob(neither math, nor science) = 29/147
None of your answers are correct
Btw, you can verify my answer by making a Venn diagram.
= 97 + 73 - 52 = 118
let the number taking neither be n
118 + n = 147
n = 29
prob(neither math, nor science) = 29/147
None of your answers are correct
Btw, you can verify my answer by making a Venn diagram.