Chapter 8.2, Problem 26E

For Exercises 25-30, use the given contingency tables. (See Example 7.)

Partnerships In Exercises 25 and 26, the given contingency table lists the cross tabulation of the number of business partnerships by industry and whether the partnership reported net income or net loss for the year 2014. (Data from: U.S. Internal Revenue Service.)

Industry	Number of Partnerships
		With Net Income (A)	With Net Loss (B)
Construction (C)	75,071	67,561
Manufacturing (M)	24,389	42,386
Wholesale Trade (W)	37,023	45,369
Retail Trade(R)	86,749	81,878

Using the letter given in the table, find the number of partnerships in each set.

a. $B\cup R$

b. $W\cup R$

c. $M\cap A$

d. $W^{\prime }$