Probability Problems '- Sample 3 Worksheet With Answers
ADVERTISEMENT
1
2
3
4Probability Problems – Sample 3
1. In a group of 40 people, 10 are healthy and every person the of
the remaining 30 has either high blood pressure, a high level of
cholesterol or both. If 15 have high blood pressure and 25 have
high level of cholesterol,
a) how many people have high blood pressure and a high level of
cholesterol?
If a person is selected randomly from this group, what is the
probability that he/she
b) has high blood pressure (event A)?
c) has high level of cholesterol(event B)?
d) has high blood pressure and high level of cholesterol (event A
and B)?
e) has either high blood pressure or high level of cholesterol
(event A or B)?
f) Use the above to check the probability formula: P(A or B) =
P(A) + P(B) - P(A and B).
1
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education