Combinatorics - math word problems - page 16 of 55
Number of problems found: 1085
- Combinations
How many different combinations of two-digit numbers divisible by four arise from the digits 3, 5, and 7? - Pablo odd numbers
Pablo has five cards with numbers 0, 1, 6, 7, and 9. How many odd three-digit numbers can he form? - Dice roll probability
What is the probability of a random event A that a) an even number, b) a number divisible by three, c) a number greater than six will fall on the dice roll. - Conditional probability
Suppose a batch contains ten items, of which four are defective. Two items are drawn at random from the batch, one after the other, without replacement. What is the probability that: I) Both are defective? Ii) Is the second item defective? - How many 4
How many four-digit numbers that are divisible by ten can be created from the numbers 3, 5, 7, 8, 9, and 0 such no digits repeats? - And-or probabilities
P(A ) = 0.53, P(B) = 0.15, and P(A n B ) = 0.18. Find P(A U B ). Round approximations to two decimal places. - Three-digit integers
How many three-digit natural numbers exist that do not contain zero and are divisible by five? - Two-digit number writing
Write all two-digit numbers using the numbers 4 and 7 - Three 192
Three separate containers each have one purple marble and two blue marbles. One marble is chosen from each box. Find the probability of selecting a blue marble from each box. - The accompanying
The accompanying table gives the probability distribution of the number of courses randomly selected student has registered Number of courses 1 2 3 4 5 6 7 Probability 0.02 0.03 0.1 0.3 0.4 - 0.01 respectively. a) Find the probability of a student registe - Divisible by five
How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? We can repeat the digits in the created number. - Round destiny
There are five white and ten red balls in the destiny. Four balls will be drawn at random. What is the probability of the event "at least two spheres are white"? - Probabilities
If probabilities of A, B, and A ∩ B are P (A) = 0.62, P (B) = 0.78, and P (A ∩ B) = 0.26, calculate the following probability (of the union. intersect and opposite and its combinations): - Variation element increase
If the number of elements increases by two, the number of variations of the second class of these elements created by 38 increases. What is the original number of elements? - Odd prime probability
What is the probability that an odd prime will fall on a dice roll? - Four numbers
I am a four-digit number, no zeros, in which the first number is five times the last, the second is four more than the first and three times the third, and the third is two more than the last and two less than the first. - Variation element count
How many elements do we create 90 variations of 2 classes without repeating elements? - A six-sided
A six-sided die is rolled once. What is the probability that the number rolled is an even number greater than two? - The dice Find the probability that a number divisible by two or three will fall when the dice are rolled.
- Lottery
Pavol has two lottery tickets, each from the other lottery. In the first is 1203 000 lottery tickets from them wins 410 000, the second has 1478 000 lottery tickets from them wins 1478 000 tickets. What is the probability that at least one Pavol's ticket
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