For 3336, let A = abc de f gh i and assume det(A) = 6. Find det(B).
Chapter 7: Sampling Study a large population by selecting a smaller sample. Example: height of adult women in the United States Population: all women in United States Sample: select 1000 women Example: unemployment statistics Population: entire workforces Choose a sample of individuals from the work force Avoid bad sampling – a sample is biased if it is not representative of the population Convenience sample a sample consisting of individuals because they are easier to reach Voluntary sample a sample which is based on individual’s willingness to respond Example: online polls, gets a sample of people more interested in the survey questions. Under coverage a list of individuals in the population is incomplete Example: suppose you want to