a jar contains 20 white marbles, 30 red marbles and 15 green marbles. 4. Draw one marble at random. What is the probability that the marble is red? 6 6. (a) 구 (b) 13 3 (c) 13 4 (d) 13

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
Im having trouble with these
a jar contains 20 white marbles, 30 red marbles and 15 green
marbles.
4. Draw one marble at random. What is the probability that the marble is red?
6
(a)
7
(b)
13
3
(c)
13
4
(d)
13
5. Suppose you draw one marble and notice that it is green. Without replacing the first
marble, draw a second marble. What is the probability that the second marble is red?
15
(a)
13
(b)
32
18
45
(c)
169
(d)
416
6. Draw two marbles at random. What is the probability that both are green?
21
21
(a)
416
(b)
832
9
10
(c)
169
(d)
13
7. Draw two marbles at random. What is the probability that one is red and one is green?
45
9
(a)
208
(b)
13
18
45
(c)
169
(d)
104
Transcribed Image Text:a jar contains 20 white marbles, 30 red marbles and 15 green marbles. 4. Draw one marble at random. What is the probability that the marble is red? 6 (a) 7 (b) 13 3 (c) 13 4 (d) 13 5. Suppose you draw one marble and notice that it is green. Without replacing the first marble, draw a second marble. What is the probability that the second marble is red? 15 (a) 13 (b) 32 18 45 (c) 169 (d) 416 6. Draw two marbles at random. What is the probability that both are green? 21 21 (a) 416 (b) 832 9 10 (c) 169 (d) 13 7. Draw two marbles at random. What is the probability that one is red and one is green? 45 9 (a) 208 (b) 13 18 45 (c) 169 (d) 104
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON