plugin-Chapter 17 Students

plugin-Chapter 17 Students - Thinking About Chance CHAPTER...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
CHAPTER 17 Thinking About Chance
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
THOUGHT QUESTION 1 Here are two very different probability questions: If you roll a 6-sided die and do it fairly, what is the probability that it will land with “3” showing? What is the probability that in your lifetime you will travel to a foreign country other than one you have already visited? For which question was it easier to provide a precise answer? Why? For which one could we all agree?
Background image of page 2
TWO CONCEPTS OF PROBABILITY Personal-Probability Interpretation The degree to which a given individual believes the event in question will happen Personal belief Relative-Frequency Interpretation The proportion of time the event in question occurs over the long run “Long-run relative frequency”
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
THE IDEA OF PROBABILITY When we toss a fair coin, we can’t predict what the next flip will be. However, because of probability, we can predict that, after a large number of flips, roughly 1/2 of our flips will be “heads” and roughly 1/2 of our flips will be “tails.” This is how chance behavior works. It is unpredictable in the short run, but has a regular and predictable pattern in the long run.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/05/2011 for the course STA 200 taught by Professor Wierdhobbitguy during the Summer '08 term at Kentucky.

Page1 / 14

plugin-Chapter 17 Students - Thinking About Chance CHAPTER...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online