Select a firstyear college student at random and ask how many hours during a typical week they spent studying or doing homework during their last year in high school. Probabilities for the outcomesare

Time	Less than onehour	1 to 5hours	6 to 10hours	More than 10hours
Probability	0.1	0.5	0.2	?

What must be the probability that a randomly chosen firstyear college student says they spent more than 10 hours per week studying or doing homework during their last year in highschool?

(Use decimal notation. Give your answer as an exactnumber.)

probability: