Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Probability Normal Approximation to Binomial Distribution?
It is claimed that 80% of the people in the United States watched the first moon-landing on TV. If this claim is true, what is the approximate probability that In a sample of 100 polled at random, the number of people who saw the landing will be
a) less than 70?
b) greater than 86?
c) between 76 and 86, inclusive?
2 Answers
- Anonymous1 decade ago
first prove to me that 80% of the people in the US did in fact watch in on TV and not hear it on radio.
