Emails arrive in an inbox according to a poisson process with rate 20 emails per hour. let t be the time at which the third email arrives, measured in hours after a certain fixed starting time. find p(t> 0.1) without using calculus.

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here