SOLUTION: A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected stude

Algebra.Com
Question 168753: A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected student takes math or English.
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
A student is selected at random from a group of 200 students in which 135 take math, 85 take English and 65 take both math and English. Find the probability that the selected student takes math or English.
---------------
P(M or E)= P(M) + P(E) - P(M and E)
= 135/200 + 85/200 - 65/200
= (135 + 85 - 65)/200
= 155/200
= 0.775
============
Cheers,
Stan H.

RELATED QUESTIONS

in a class of 24 students 19 take social studies, 22 take math and all take either social (answered by scott8148)
The freshman class at a college has a total of 250 students. One hundred and ten freshmen (answered by ikleyn)
2. Three cards are drawn from a standard deck w/out replacing them. a.) what is the... (answered by stanbon,addingup)
In a group of 50 students, 20 take an English subject, 25 take a technology subject and... (answered by edjones)
Please help me solve this word problem about Compound Events:(union, intersection and... (answered by math_tutor2020,ikleyn)
Suppose there is a group of 100 students. 70 of them are in an English class, and 40 of (answered by math_tutor2020)
At a certain school, 240 of the students take math, 180 of the students take grammar, and (answered by AnlytcPhil,phojhe001)
a student must take 2 math classes, 2 english classes, 2 science classes, 1 history... (answered by Dinosaur)
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied... (answered by ikleyn)