Rob can tar a roof in nine hours. one day his friend kayla him and it only took hime 4.74 hours. how long would it take kayla to do it alone

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3