A jury is to be selected from a pool of 34 potential jurors. The defendant faces the death penalty if convicted. Of the potential jurors, 7 are opposed to the death penalty. The jury consists of 12 randomly selected jurors.
The random variable X represents the number of jurors who oppose the death penalty. A) hypergeometric; N = 34, n = 12, k = 7, x = 0, 1, 2, . . . , 7
B) hypergeometric; N = 34, n = 7, k = 12, x = 0, 1, 2, . . . , 7
C) hypergeometric; N = 34, n = 12, k = 7, x = 0, 1, 2, . . . ,12
D) not hypergeometric
Question 2
A drug company wanted to test a new arthritis medication. The researchers found 500 adults aged 25-35 and randomly assigned them to two groups. The first group received the new drug, while the second received a placebo.
After one month of treatment, the percentage of each group whose arthritis symptoms decreased was recorded and compared. Identify the experimental units. A) the 500 adults aged 25-35
B) the percentage who had decreased arthritis symptoms
C) the drug (medication or placebo)
D) the one month treatment time
Bill Viola, The Reflecting Pool.
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