Which price choice is the lowest price per ounce?

choice a: 25 ounces of potato chips for $3.49
choice b: 45 ounces of potato chips for $4.79

choice a
choice b
the unit rates are equal.
the unit rates cannot be determined.

do explanation you

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