california has the second lowest rate of smokers in the nation. only 15% of all californians smoke. anna thinks that the students in her school have an even lower rate. she collects a sample of 100 students, ten of them smoke. calculate the z-statitic, state the critical value, and come to a conclusion concerning the rate of students who smoke at anna's school.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate

Which of the following best describes the figure?