6-7 A box contains 3 white balls and 4 blue balls. Two balls are selected at random from the box. Find the following 6. The probability of getting a white ball and a blue ball if the balls are selected with replacement. (a)12/49 (b) 9/49 (c) 16/49 (d) 2/7
Added by Kathleen C.
Close
Step 1
The total number of balls in the box is $3+4=7$. Since the balls are selected with replacement, the probability of selecting a white ball in the first draw is $P(W_1) = \frac{3}{7}$. The probability of selecting a blue ball in the first draw is $P(B_1) = Show more…
Show all steps
Your feedback will help us improve your experience
Anas Venkitta and 89 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
There are two boxes marked A and B. Box A contains 4 red and 3 white balls, and Box B contains 3 red and 4 white balls. A box is selected at random and a ball is taken from it. Probability that the ball is white is (a) $\frac{1}{2}$ (b) $\frac{12}{49}$ (c) $\frac{37}{49}$ (d) $\frac{1}{4}$
There are 6 White balls, 4 Blue balls and 5 Red balls in a box. Three balls are selected at random without replacement. a) What is the probability of getting three balls of different colors? b) What is the probability of getting one white ball and two balls of any color?
Madhur L.
A box A contains 3 white and 2 blue balls. Another box B contains 4 green and 5 blue balls. If two balls are picked at random from each box , find the probability that a. One is green and the other is white. b. They are of the same colour. C. They are not of the same colour
Sri K.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD