Carlos is making a wood picture frame.
The picture frame is 11 inches by 14 inches.
After nailing the frame together, Carlos
measures the diagonal. If the diagonal is
19 inches long, does the frame have
90° corners? Explain.

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