The mean of three numbers is 6 the mode of three number is 7 what is the least number

The circumference of a circle is 5 pi cm. what is the area of the circle?

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

Icould really use some with this question.