What is the total number of students playing football, basketball, or both?
A) 4
B) 10
C) 11
D) 15
E) 19
If a new range was created for the chart of $10,000 - $24,999, what percentage would be assigned to this new range?
A) 75
B) 53
C) 40
D) 35
E) 4
First one
N ( basketball , football, both) = N(basketball) + N(football) - N (both) = 9 + 10 - 4 = 15
Second one
10,000 to 24,999 =
%(10000 to 14999) + % ( 15000 to 24999) =
18% + 22% =
40%