you choose a marble at random from a bag containing 10 red marbles 5 yellow marbles and 1 pink marble you replace the marb
Question
you choose a marble at random from a bag containing 10 red marbles, 5 yellow marbles, and 1 pink marble. You replace the marble and then choose again. Find the probability of P(both red)
285
likes
1427 views
Answer to a math question you choose a marble at random from a bag containing 10 red marbles, 5 yellow marbles, and 1 pink marble. You replace the marble and then choose again. Find the probability of P(both red)
red marbles = 10
yellow marbles = 5
pink marbles = 1
total marbles = red + yellow + pink = 10 + 5 + 1 = 16
probability of red marble (1st pick) = 10/16
probability of red marble (2nd pick with replacement) = 10/16
probability of both red = \frac{10}{16}\cdot\frac{10}{16}=\frac{100}{256}=\frac{25}{64}
Frequently asked questions (FAQs)
Math question: What is the probability of rolling a 6 on a fair, standard die?
+
What are the characteristics of an ellipse represented by the equation (x^2/a^2) + (y^2/b^2) = 1?
+
What is the value of log(base 3) 243 + log(base 9) 81 - log(base 2) 32?