Suppose that 15% of all invoices are for amounts greater than $1,000. A random sample of 60 invoices is taken. What is the mean and standard error of the sample proportion of invoices with amounts in excess of $1,000

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?