Lee has a jar of 100 pennies. she adds groups of 10 pennies to the jar. she adds 5 groups. what numbers does she say?

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

How to find the exponential function y=ca^x, with points (1,2) and (2,1)