California State University, Northridge

APPL COG 18124

Chapter 9

1)Events that have a 1 in a billion chance of happening, such as a recovery from stage 5 cancer:

2. When most people play lotteries that involve picking a certain number of random

numbers:

3. George O. T. Jungle is asked if battery fires in Tesla autos are common. He answers

that they are, because he quickly retrieves a memory of such a fire he saw in the paper last week. The process he's using to judge how likely this event will be is known as the:

4. Rocket J. Squirrel is flipping a coin to see what results he gets. Is he more likely to get

this sequence: H, T, H, H, T, T, or is he more likely to get this sequence: T, T, T, H, H, H?

5. The odds that two people will share a birthday in a group of 30 people is about:
6. The law of large numbers suggests that:
7. The probability that one of two independent events will occur or the other one will is the

sum of the probability of each event occurring. This is known as:

8. There is an illness that strikes one in 1000 people. There is a test for the illness that correctly identifies 90% of people who don't have the illness and false alarms on 10% of people who don't have the illness. It also identifies 90% of the people who have the illness, but misses 10% of them, saying they're healthy when they're not. George Jetson