The length of time for one individual to be served at a cafeteria is a random variable having an exponential distribution with a mean of 4-minutes. what is the probability that a person is served is less than 3-minutes on at least 4 of the next 6 days?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

The side of a square is 3 and 5/2 inches

Indicate whether each statement is true or false, assuming that the "or" in the sentence means the inclusive or. then indicate whether the statement is true or false if the "or" means the exclusive or. (a) february has 31 days or the number 5 is an integer. (b) the number pi is an integer or the sun revolves around the earth. (c) 20 nickels are worth one dollar or whales are mammals. (d) there are eight days in a week or there are seven days in a week. (e) january has exactly 31 days or april has exactly 30 days.