probability and statistic

Most popular questions and responses by probability and statistic
  1. algebra

    A biologist knows that the average length of a leaf of a certain full-grown plant is 4 inches. The standard deviation of the population is 0.6 inch. A sample of 20 leaves of that type of plant given a new type of plant food had an average length of 4.2

    asked on May 20, 2017