MATH

posted by .

From experience, the manager of Kramer's Book Mart knows that 40% of the people who are browsing in the store will make a purchase. What is the probability that among ten people who are browsing in the store, at least four will make a purchase? (Round your answer to four decimal places.)

  • MATH -

    at least four make a purchase?
    pr(at least four)=Pr(4)+pr(5)+...
    = p^4q^6+P^5q^5+p^6q^4+p^7q^3+...p^10q^0
    where p=.4, q=.6

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics

    John runs a computer software store. Yesterday he counted 127 people whwo walked by his store, 58 of whom came into the store. OF the 58, only 25 bought something in the store. A. What is probability that a person who walks by the …
  2. Math

    From experience, the manager of Kramer's Book Mart knows that 30% of the people who are browsing in the store will make a purchase. What is the probability that among ten people who are browsing in the store at least seven will make …
  3. Binomial Math

    From experience, the manager of Kramer's Book Mart knows that 40% of the people who are browsing in the store will make a purchase. What is the probability that among ten people who are browsing in the store, at least five will make …
  4. algebra

    To determine what people like to do in their leisure time, the customers of a music store are surveyed. Of these, 85% said that they like to listen to music, so the store manager concludes that most people like to listen to music in …
  5. math, HELP ME PLEASE!!

    T determine what people like to do in their leisure time, the customers os a music store are surveyed. Of these, 85% said that they like to listen to music, so the store manager concludes that most people like to listen to music during …
  6. math

    From experience, the manager of Kramer's Book Mart knows that 33% of the people who are browsing in the store will make a purchase. What is the probability that among 9 people who are browsing in the store, at least 6 will make a purchase?
  7. math

    for a store contest 4 out of every 65 people who visit the store will receive a freee dvd if 455 people visit the store how many dvds were given away
  8. math

    a store manager is accipting applications for part time workers. He can hire no more than 14 people. So far he has hired 9 people. Write and solve an inequality to determine how many more people the manager can hire
  9. statistics

    From experience, the manager of a bookstore knows that 40% of the people browsing in his store will make a purchase. If on a certain day, 360 people come into the store a) what is the probability that exactly 144 of them make a purchase?
  10. MATH

    From experience, the manager of Kramer's Book Mart knows that 50% of the people who are browsing in the store will make a purchase. What is the probability that among ten people who are browsing in the store, at least two will make …

More Similar Questions