1.) The table given the IQ rating as well as the creativity rating. Find the probability that a randomly selected individual from the study will be classified as having high IQ or as having high creativity.
| Low IQ | High IQ | |
| Low Creativity | 25 | 30 |
| High Creativity | 20 | 125 |
2.) A number is selected from {1,2,3,4,5,6,7,8}. Determine the probability that the chosen number is even or divisible by three.
3.) Consider the events of selecting 1 card from an ordinary deck of 12 cards and then selecting anotrher card without replacing the first. Determining the probability of the following events:
a.) selecting 2 crads
b.) selecting 2 face cards
c.) selecting 2 aces
d.) selecting 2 red cards
+5265 #2. We know that there are 8 possibilities and that there are 3 even numbers, 1 number that is ONLY divisible by 3, and one that is both.
3+1+1=5
5/8
There is a 5/8 chance.
+129849 1. P(High IQ or High Creativity) = P(High IQ) ) + (High Creativity) - P(High IQ and High Creativity)
= 155/200 + 145/200 - 125/200 =
175/200
3. I'm assuming that the 12 cards are Jacks, Queens, Kings and Aces
a) probability of selecting 2 cards??? = 100% [I doubt that this is the question]
b)probabilty of selecting 2 face cards = (12/16)* (11/15) = 132/240 = 11/20
c) two aces = (4/16)(3/15) = 12 / 240 = 1/20
d) two red cards = (8/16)(7/15) = 7/30
