Question

All changes saved

11. Out of 300 students, 45 are in Calculus, 21 are in Statistics, and 14 are in both.
How many students are in neither Calculus nor Statistics?
a. 234
b. 248
c. 220
d. 286

Answer 1

B, 248

Explanation:

Out of 45 students in calc and 21 in stats, 14 are repeatedly counted. We can subtract 14 from one group so that this number does not overlap. For example, let us take the calc group:

45-14= 31

31+21 =52 students taking either calc or stats, NOT OVERLAPPED

Everyone else is not taking calc or stats, so 300-52= 248, or B

I hope this helps! :)