Tyra observed at a mall that the average number of people entering a store was 43 per hour. the standard deviation is 9. assuming the data is a normal distribution, about what fraction would represent between 34 and 43 people entering a store?

Out of the 180 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking? 72% 40% 54% 98%