0
Still curious? Ask our experts.
Chat with our AI personalities
Devin
Coach
ReneAdd your answer:
Earn +20 pts
A jar contains 22 yellow marbles 26 green marbles 17 red marbles and 20 purple marbles A marble is drawn at random what is the probability of not pulling out a purple marble?
probability of pulling out a purple marble = 20/85probability of NOT pulling out a purple marble = 1 - 20/85 = 65/85 = 13/17
What is the probability of pulling of pulling out a blue marble returning it to the jar and then pulling out a green marble?
The probability is B*G/(B+G+R)^2where B = number of Blue marbles G = number of Green marbles and R = number of marbles of other colours.
If you had 10 red marbles 5 blue marbles 2 yellow marbles 1 yellow marble and rolled a 10 sided die What is the probability of getting 1 yellow marble and a 10?
Note:In listing the contents of the marble jar, you mentioned yellow marbles twice ..."2 yellow marbles" and "1 yellow marble". We'll assume there are 3 yellow marbles.Also note:You didn't actually say that the numbers 1 through 10 are printed on the 10 sidesof the 10-sided die. We'll assume that they are.Also note:You didn't actually say that we select a marble at the same time that we toss the10-sided die. We'll assume that we're supposed to do that.Now that we've done the proof-reading and cleaned up the question, we can go aheadand answer it:The probability of rolling a 10 with the 10-sided die is 1 out of 10 = 0.1 .There are 18 marbles total in the jar, and 3 of them are yellow. The probability ofdrawing one yellow marble out of the jar is (3/18) = 1/6 .The probability of drawing 1 yellow marble and rolling a 10 on the die is(1/6) x (0.1) = 12/3%
When a jar contains 5 white marbles 3 blue marbles and 2 green marbles and if one marble is drawn at random then what is the probability that it will be blue?
There is a probability of 3 that it will be blue.
What is the probability of selecting a nickel from a jar containing 80 pennies100 nickels 70 dimes and 50 quarters?
33% chance
