Mathematics, 19.05.2021 18:40 mmimay3501

A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are selected, with each marble being replaced after each selection. What is the expected number of draws until the first red marble? Since about half of the marbles are red, 2 draws is expected until a red marble is drawn.
Since there are 3 colors of marbles, 3 draws is expected until a red marble is drawn.
Since StartFraction 11 Over 29 EndFraction of the marbles are red, StartFraction 11 Over 29 EndFraction draws are expected until a red marble is drawn.
Since StartFraction 11 Over 29 EndFraction of the marbles are red, StartFraction 29 Over 11 EndFraction draws are expected until a red marble is drawn.

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 20.06.2019 18:04

Students buying lunch at rockwell elementary school yesterday chose either burritos or pizza. 185 students chose burritos and 252 chose pizza. 1. estimate the number of students who brought lunch by rounding each number to the nearest hundred. 2. estimate how many students bought lunch by rounding each number to the nearest ten. 3. find the total number of students who brought lunch. which of your estimates is closer to the actual total? explain. 4. draw a figure on a sheet of paper. estimate how many pennies will fit inside the figure. check your prediction using pennies.

Answers: 1

Answer

Mathematics, 21.06.2019 15:10

Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1

Answers: 1

Answer

Mathematics, 21.06.2019 16:30

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Answers: 2

Answer

Mathematics, 21.06.2019 21:30

Can someone explain to me how to do

Answers: 1

Answer

You know the right answer?

A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are...