small-business Web site contains 100 pages and 60%, 30%, and 10% of the pages contain low, moderate, and high graphic content, respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample, respectively. 1. If the first drawn page has moderate graphics, what is the probability that there are no pages with low graphics chosen? Express answer in scientific notation. 2. If there are no pages with moderate graphics drawn, how many pages with high graphic content would you expect in the sample. 3. What is the variance of Y given that the there are no pages with moderate graphics drawn?
A small-business Web site contains 100 pages and 60%, 30%, and 10% of the pages contain low, moderate, and high graphic content, respectively. A sample of four pages is selected without replacement, and X and Y denote the number of pages with moderate and high graphics output in the sample, respectively.
1. If the first drawn page has moderate graphics, what is the probability that there are no pages with low graphics chosen? Express answer in scientific notation.
2. If there are no pages with moderate graphics drawn, how many pages with high graphic content would you expect in the sample.
3. What is the variance of Y given that the there are no pages with moderate graphics drawn?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
