Question

Statistics for Chance Numbers: EV and SE of the sum A bag contains 5 red marties, bumables, and green marbles a green martie is drawn you win $5 andre martes Suppose you make 81 draws out of the bag Your chances remain them , the number of red and green mar c han 1. This corresponds to the many tickets at random mare t Thes/ 2. with or without replacement without replacement SubArTres / 3. From which of the following boxes Correct: 16 tickets 3 tickets are S's, 5 tickets are l's, and a tickets are 1 Incorrect 16 tickets tickets are 's and tickets are 1's. Incorrect 16 tickets: tickets are l's and tickets are 's Incorrect 16 tickets Some are 5. some are and some are 1 but we do not know how many of each ind until you play times Incorrect 81 tickets Some are some are and some are but we do not know how many of each indtil you pass times bove. You are correct Preus tres Your receipt no. is 152-27200 4. What is the verge of the box to calls) 5. What thered the res t dema s ) 6. The SD of the box is 2.22. What is the SE of the sum for your wings to Tries 3

Answer 1

1) 81

2) with replacement

4) average of box=Σx*P(X) = 5*3/16 + 1*5/16 + (-1)*8/16 = $0.75

5) expected value for sum of 81 draw = 81*0.75 = $60.75

6) SE of sum of winning = √n * SD=√81 *2.22 = 19.98

please revert for doubt