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.

Anonymous
Anonymous asked in Education & ReferenceHomework Help · 1 decade ago

Can you solve this Statistics question?

The Internal Revenue Service estimates that 8% of all taxpayers filling out long forms make

mistakes. Suppose that a random sample of 10,000 forms is selected. What is the approximate

probability that more than 800 forms have mistakes?

1 Answer

Relevance
  • 1 decade ago
    Favorite Answer

    this is Binomial Distribution with p=0.08, n=10000

    we want to get P(x>=800)

    P(x>=800)=sum(i from 800 to 10000) (10000 C i) (0.08)^i (1-0.08)^(10000-i)

Still have questions? Get your answers by asking now.