Answer the questions...no need detail explanation

Question 1

An experiment consists of tossing three identical coins. What is the probability of tossing two heads? A. 1/2 B. 1/4 C. 3/8 D. 5/8Two hundred people were asked if they had read a book in the last month. The findings are split into two age groups, as shown below: Under 30 years old who read a book last month = 76 Under 30 years old who does not read a book last month = 44 30 years old or older who read a book last month = 53 30 years old or older who does not read a book last month = 27 The probability that a respondent read a book in the last month, given that he or she is at least 30 years old is A. 0.27 B. 0.41 C. 0.66 D. 0.83