Assignment: Probability Analysis

Part 1) Optional- Read the quotes located at http://www.ecoccs.com/tsuteach.html#quote

Part 2) Required

1) According to the Annual death rate from malignant neoplasms table, what is the probability that a directly exposed hibakusha (Person-years 1968-1972) living within 2 kilometers of Hiroshima would die:

a) All hibakusha

and

b) Non-hibakusha.

2) A couple has three children, and it is known that at least one of the children is a girl. What is the probability that the couple has at least one boy, assuming that having a boy or girl is equally likely?

3) An electronic controlling mechanism requires five identical memory chips. In how many ways can this mechanism be assembled using 5 given chips?

4) In how many different ways can 3 of 20 laboratory assistants be chosen to assist with an experiment?

5) In how many different ways can one make a first, second, third, and fourth choice among 12 firms leasing construction equipment?