Assume when adults with a smartphone are randomly selected 47% use them in meetings or classes. 11 adults smartphone users are randomly selected.find the probability that fewer than 5 of them use their smartphones in meetings or classes. The probability is?

The probability that a randomly selected person has high blood pressure (the event H) is p(H)=0.2 and the probability that a randomly selected is a runner (the event R) is P(R)=0.4. The probability that a randomly selected person has blood pressure and is a runner is 0.1. Find the probability that a randomly selected person is a runner, given that he has high blood pressure.

(a) 0

(b) 0.25

(c) 1

(d) 0.50

(e) 0.17

(f) None of the above

Find the probability that a randomly selected representative is female. Find the probability that a randomly selected senator is female. 

If a person is randomly selected, find the probability that his or her birthday is in October.
Ignore leap years.