If Joe is not allowed to pull out any more marbles, what do you think his best estimate will be for the total number of red marbles in the mystery bag? Explain.

plz yuo

step-by-step explanation:

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

this answer is !

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a