Lecture 3- Probability, Pedigrees, and Chi-Squared

Question 1

null hypothesis

Answer 1

• the hypothesis that there is no relationship between a and b, or that the probability (p) that your results are unlikely to be due to chance
• If you fail to reject the null hypothesis, you accept it
• Failing to reject the null hypothesis does NOT mean your results are due to chance, however, just that they PROBABLY are due to chance
• the p value tells you the probability that your results are due to chance and not something else

Question 2

p-value

Answer 2

• Probability that you can reject the null hypothesis

- In other words, probability that your results are due to chance