An urn contains n m balls, of which n are red and m are black. they are withdrawn from the urn, one at a time and without replacement. let x be the number of red balls removed before the first black ball is chosen. we are interested in determining e[x]. to obtain this quantity, number the red balls from 1 to n. now define the random variables xi , i

dont think so

step-by-step explanation:

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !

the answer is ! ?