4. Use the table below to:

Determine the probability that a randomly selected executive has a salary greater than or equal to $70,000 but less than $100,000.

Determine the probability that a randomly selected executive as a salary that is either less than $60,000 or greater than or equal to $90,000. Are these events mutually exclusive?

Event	Salary range	Relative frequency
A	Under $60,000	0.12
B	$60,000 to under $70,000	0.21
C	$70,000 to under $80,000	0.28
D	$80,000 to under $90,000	0.15
E	$90,000 to under $100,000	0.20
F	$100,000 or more	0.04
TOTAL	1.00