Answer:
7.6%
Step-by-step explanation:
What we know: 80% received medication A - well if 80% received the medication then that must mean that 20% did not recieve medication A, because we know 100% - 80% = 20%
Of those who received the placebo, 62% reported no improvement- well if 62% showed no improvement on the placebo that must mean that 38% DID show improvement on the placebo because we know that 100% - 62% = 38%
To find P (placebo and improvement) we multiply these two percentages- those who received a placebo, and those who showed improvement on the placebo. <u>So 20% becomes 0.20</u> and <u>38% becomes 0.38</u>. 0.20 x 0.38 = 0.076
Now we can convert this into a percentage! :) move the decimal over two places to the right and we get 7.6%
PSA CA AQUANDR Conditional Prob Quiz P2 Answer 100%