Question 1

1. Compute the weighted mean for the following data.

https://content.grantham.edu/at/BA215/2015/wk-2-assignment-image-1.png

Question 2

1. If P(A) = 0.50, P(B) = 0.40, and P(A ∪ B) = 0.88, then P(B | A) =

Question 3

Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. A tablet is then selected and given to Person B. What is the probability that

1. Person A was given a vitamin tablet?

2. Person B was given a sugar tablet given that Person A was given a vitamin tablet?

3. Neither was given vitamin tablets?

4. Both were given vitamin tablets?

5. Exactly one person was given a vitamin tablet?

6. Person A was given a sugar tablet and Person B was given a vitamin tablet?

7. Person A was given a vitamin tablet and Person B was given a sugar tablet?