1. What is the difference betweeen Relative Frequency
and Probability?
___________________________________________________
___________________________________________________
2. What is the probability I could guess
a.) what day of the
week you were born on? _____________
b.) what month you
were born on? _________________
Assume all months have the same number of days.
If you really think about this one, some months have a higher probability.
c.) what your exact birthday is (i.e. March 13)? ______________
3. About 130 million U.S. citizens own a computer.
87 million
people have Internet access. There
are about 260 million U.S. citizens.
a.) What is the probability
that if you selected someone at random, you
would pick a person that has a computer at home?
___________
b.) What is the probability
that if you selected someone at random, you
would pick a person that has Internet access?
___________
c.) What is the probability
that if you selected someone who owns a
computer, he would have Internet access?
__________
4. In a hat there are 80 marbles. 20 are blue,
20 are red, 20 are green, and
20 are black. After reaching
in the bag 20 times, I had the following:
10 blue, 6 red, and 3 green, and
1 black
a.) What was the probability
of pulling out a blue marble? ________
b.) What was the relative frequency of pulling out a blue marble? _______
c.) What was the relative frequency of pulling out a green marble? ______
d.) What was the probability of pulling out a green marble? ______
e.) What was the relative frequency of pulling out a black marble? ______
f.) What was the probability of pulling out a green marble? ______
5. I interviewed p people for admission to the Hickam
fan club. I accepted 2/5 of
those I interviewed. How
many people now are in the Hickam fan club?
_______