A popular coffee shop opened a shop downtown and a shop in the mall. The managers recorded the number of cups of coffee sold during each month from January through May in each shop. Their data is shown in the bar graph below. Based on the data in the graph, which inference about the two shops is true?A. More people go to the downtown shop than the shop in the mall.
A. More people go to the downtown shop than the shop in the mall.
B. People order more coffee at the shop in the mall than the downtown shop.
C. The coffee is more expensive at the downtown shop.
D. The weather was colder at the mall in February than downtown.

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.