A total of 11℅ students at a large high school are left-handed. A statistics teacher selects a random sample of 100 students and records L = the number of left-handed students in the sample. a. Explain why L can be modeled by a binomial distribution even though the sample was selected without replacement.

b. use a binomial distribution to estimate the probability that 15 or more students in the sample are left-handed handed.