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If 3 balls are drawn from a bag containing 3 red balls and 4 blue balls what is the expected number of red balls drawn?
Wiki User
∙ 10y ago
The expected number is 12/7 = 1.29 approx.
Wiki User
∙ 10y ago
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What is the number of diagonals drawn from one vertex on a triangle?
The number of Diagonals in one vertex of a Triangle is 0 (zero)..
What is the number of diagonals drawn from one vertex on a 13-gon?
There are 10 possible diagonals drawn from one vertex of the 13-gon which divide it into 11 nonoverlapping triangles.
What conclusion can be drawn by observing that 30 is to the right of 10 on a number line?
You can conclude that it is larger.
How many lines can be drawn through 2 points?
1 straight line. An infinite number of curved lines.
A bag contains 7 red 5 blue 4 white and 4 black balls find the probability that a ball drawn at random is red or white?
It is (7+4)/(7+5+4+4) = 11/20
One ball is drawn at random from a bag containing 17 red balls and 4 white balls what is the probability that the ball is red?
17 out of 21
A bag containing 4 green 6 black 7 white balls a ball is drawn at randomly probability of finding 2 red balls?
The probability is zero, because there are no red balls in the bag.
A box contains 75 balls numbered from 1 to 75. If 12 balls are drawn with replacement what is the probability that at least two of them have the same number?
It is 0.6050
A box contains 4 red balls and 2 black balls Three balls are drawn with replacement Let the random variable X be the number of red balls obtained?
x X over 2 = 2
A bucket contains 50 lottery balls numbered 1-50. One is drawn at random. What is the probability of the number being 2- digit number?
40/50
How do you catch bowling balls spongebob drawn to life?
Grab a jellyfish net and hit the bowling balls
What are the combinations that can be made from 39 balls if 6 balls are drawn at a time?
There are 3,262,623 combinations and I am not crazy enough to list them all.
A box contains 75 balls numbered from 1 to 75 If 7 balls are drawn with replacement what is the probability that at least two of them have the same number?
25.1%The probability of having at least two same number balls when 7 balls are drawn withreplacement from a box containing 75 numbered balls from 1 to 75 is calculated asfollows:We calculate the probability of drawing 7 times a ball (with replacement) and havingall different numbers. Then we subtract this value from 1. This will be the probabilityof all the possibilities of combinations of 7 numbers where at least two are repeated.1.- For the 1st ball the options are 75/75.2.- For the 2nd ball the options for not repeating the 1st number are 74/75.3.- For the 3rd ball the options for not repeating the previous two numbers are 73/75.4.- For the 4th ball the options for not repeating the previous three numbers 72/75.5.- For the 5th ball ........................................................................... 71/75.6.- For the 6th ball ........................................................................... 70/75.7.- For the 7th ball ........................................................................... 69/75.The probability of drawing seven balls (with replacement) having all different numbersis: 75/75(74/75)(73/75)(72/75)(71/75)(70/75)(69/75) = 0.749419476...The probability of having at least two same number balls when 7 balls are drawn with replacement from the given box is:P = 1 - 0.749419476... = 0.250580524...≈ 25.1%
What is the experimental probability that a piece of paper randomly drawn from the bowl will have the number 35 written on it?
To get the EXPERIMENTAL probability, you'll have to actually carry out the experiment. The EXPECTED probability is equal to a fraction; the numerator will be the number of pieces of papers that have the number 35, the denominator will be the total number of pieces. If you repeat the experiment often, you can expect the experimental probability to be close to the expected probability.
How many tangents can be drawn to a circle containing a point inside a circle?
No tangent No tangent
If an urn contains 6 yellow balls 3 red balls and 5 blue balls If 2 balls are drawn without replacement what is the probability of drawing 2 yellow balls?
The probability is (6/14)*(5/13) = 30/182 = 0.1648 approx.
How many 6 combination can you make from 1 to 55?
28989675, based on the following criteria: Combination means order does not matter, and there is no repetition allowed (like drawing lotto balls, once a number is drawn, then it cannot be drawn again, and order that the balls are drawn doesn't matter) The formula for this is Combination of n items, taken rat a time.C(n,r) = n! / (r!(n-r)!), where n = 55 and r = 6, in this case. See related link on MathsIsFun.com
