Many urban zoos are looking at ways to effectively handle animal waste. One zoo has installed a facility that will transform ani
mal waste into electricity. To estimate how many pounds of waste they may have to fuel the new facility they began keeping meticulous records. They discovered that the amount of animal waste they were disposing of daily is approximately Normal with a mean of 348.5 pounds and a standard deviation of 38.2 pounds. Amounts over 350 pounds would generate enough electricity to cover what is needed to for the entire aquarium that day. Approximately what proportion of the days can the zoo expect to obtain enough waste to cover what is needed to run the entire aquarium for the day? (A) 0.484
(B) 0.499
(C) 0.516
(D) 0.680
(E) 0.950
Let X be the daily waste amount produced. X is distributed in a way that is close to Normal with an average of 348.5 pounds and a standard deviation of 38.2 pounds.
Ito ang unang hakbang para malaman ang pinakapagkakataon na makabili sa mas magandang presyo. Kailangan mong malaman kung ilang pakete ng 6.99 ng mulch ang kailangan para takpan ang buong hardin, upang malaman kung magkano ang kabuuan bayaran para sa lahat ng mga pakete.
Sam needs to score 97 on his upcoming test to keep his average at 85. If you total 63, 84, 96, and 97, the sum is 340. Dividing 340 by four test scores yields an exact average of 85.
