Câu toán khó nhất lớp 7 là gì

After two years, how much has been paid into interest?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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