What is the probability of picking a yellow and red marble?
Since there are 6 yellow marbles, and 15 overall marbles, the answer would be 6/15. 22. 2/5. The probability of drawing a red marble = 2/5.
What is the probability of picking a red marble?
2/5
What is the probability of choosing a red or a blue marble?
There are 35 marbles in all (10 red + 8 blue + 10 yellow + 7 pink = 35). Therefore the probability of drawing a red or blue marble is 18/35.
What is the probability of obtaining a yellow marble?
What is P(NOT yellow)? In drawing one marble from the bag, at random, the probability of selecting a white marble is 0% and the probability of selecting a marble of any color except yellow is 80%.
What is the probability of getting exactly 1 Blue?
What is the probability of getting exactly 1 blue? The probability of drawing a blue is 5/13, since we replace the marbles in the bag each time.
What is the probability of choosing red?
The probability of picking a ball from a bag is the number of balls of that colour divided by the total number of balls. Therefore in the first instance, the probability of a red ball is 3/9 or 1/3rd. If that ball is now removed the probability of picking a 2nd is 2/8 or 1/4.
What is the probability of getting 2 red balls?
On your first pick, the probability is 11/16 that you choose a red ball. On the second pick, the probability is 10/15 that you choose a red ball. So 11/16*10/15 = 110/240 = 45.83% chance of picking two red balls in a row.
What is the probability that the two balls are both red given that they are the same color?
The probability that both balls are the same color is 0.44.
What is the probability of choosing 2 red balls?
If the second blind pick is another red ball then this has a probability of 2/7 (since there are only 2 red balls when the selection was made, and only 7 total balls because a red ball was taken away). The probability of the two red balls being drawn is then 3/8 * 2/7 = 6/56 = 0.0107142857.
What is the probability of getting 2 white balls?
Two balls are drawn one by one at random without replacement. The probability that the second drawn ball is white. Therefore, the probability that the second drawn ball is white = (2/7) + (2/7) = 4/7.
What is the probability that the first ball is red?
5/8
What is the probability of selecting a girl?
There are 45–25=20 girls in the class. So, the probability that a randomly selected student is a girl is 20/45=4/9.
What is the probability Both students are girls?
both are girls (GG) — with probability P(GG) = 14, 2.
What is the probability of selecting a boy?
However in school exercises there should always be a finite answer, which means the answer expected is the most precise answer you can get based on all the information given. Total student = 35+45 = 80. So, the probability of selecting a boy is 45/80 and the probability of selecting a girl is 35/80 = 7/16.
What is the probability of selecting a month with 31 days?
The total number of months in a calendar year is 12, and the months that have 31 days are January, March, May, July, August, October, and December, so there are 7 months that have 31 days. Thus, the probability of selecting a month that has 31 days will be equal to 7 divided by 12.
What is the probability of choosing a 30 day month from a year?
There are 365 days in a standard year, 120 of which make up the 30 day months. This would give 120 / 365 or 32.8767123%.
What is the probability of choosing a day which starts with S?
Answer Expert Verified Answer: The probability of choosing a day which starts with S is 2/7 or you can also express this answer as 0.285 or 28.5%.
What is the probability of selecting a heart from a deck of cards?
For example, what is the probability of drawing a Heart and a Club from standard deck? P(Heart and Club) = P(Heart) * P(Club) = 13/52 * 13/52 = . 25 * .
What is the probability of selecting a queen or heart?
There are 13 hearts in 52 cards. C) From above, P(Queen)=4/52 and P(Heart)=13/52, the queen of hearts is in both categories so we have to subtract 1/52 so we don’t double count.
What is the probability of pulling a heart?
One in four. 13 cards of heart/52 total cards= 1/4= 25% chance of drawing a heart.