Combinatorics - math word problems - page 16 of 54
Number of problems found: 1080
- 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 - Three-digit 67824
The numbers 1,3,7,4 are given. How many three-digit numbers are there: a) if the numbers can be repeated b) if the numbers cannot be repeated c) how many even three-digit numbers if the numbers can be repeated d) how many odd three-digit numbers if the nu - Three-digit 65624 Pablo has five cards with numbers 0, 1, 6, 7, and 9. How many odd three-digit numbers can he form?
- 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. - Marbles 3
Paisley has a bag of 16 green, orange, and yellow marbles. If there are eight green marbles, how many marbles have to be yellow for P(yellow) = 1/4? - The dice
Find the probability that a number divisible by two or three will fall when the dice are rolled. - Three-digit numbers
How many are all three-digit numbers made up of digits 0,2,5,7 and are divisible by nine if the digits can be repeated? - Scrap
From 18 products are 5 scraps. What is the probability that the random pick of 2 products has no defective product? - 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 - Probability 41101
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. - 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"? - 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.
- 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. - 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): - Variations 26791
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? - Two-digit 26211
Write all two-digit numbers using the numbers 4 and 7 - 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? - Combinations 80637
If the number of elements decreases by 4, the number of combinations of the second class from these elements decreases three times. How many elements are there? - Probability 41091 What is the probability that an odd prime will fall on a dice roll?
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