Question

80 men and 60 women are enrolled in calculus. There are 40 business majors, 30 biology majors, 15 computer science majors, and 5 mathematics majors. No person has double major. If a single calculus student is chosen, find the following probabilities

Answer 1

Total =
$80 + 60 + 40 + 30 + 15 + 5 = 230$
Calculus = 80 + 60 = 140

Probability :
$\dfrac{140}{230} = \dfrac{14}{23}$

Answer : 14/23 or in decimal form, 0.61.

Hope this helps. - M