The oldest child in a family of four children is twice as old as the yougest. the two middle children are 13 and 16 years old. if the average age of the children is  13.25. how old is the youngest child?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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

Determine if the function below is continuous. a. continuous b. not continuous, 1 hole c. not continuous, > 2 holes d. not continuous, 2 holes