แผ่นงานMastering Permutations and Combinations
คำถามทั้งหมด: 15
How many different ways can the letters of the word "MATH" be arranged?
In how many ways can a committee of 3 members be selected from a group of 10 people?
What is 5!
Using the counting principle, how many different two-letter codes can be created using the letters A, B, C, and D without repeating letters?
What is the probability of randomly arranging the letters in the word "DEED" such that the two E's are next to each other?
From a group of 8 women and 6 men, a committee of 5 people is to be formed. How many different committees can be formed if the committee must consist of 3 women and 2 men?
If there are 4 different books on mathematics, 3 different books on physics, and 2 different books on chemistry, in how many ways can the books be arranged on a shelf if the books on the same subject must be kept together?
In how many ways can 5 different prizes be distributed among 4 students if each student can receive any number of prizes?
What is the probability of getting exactly two heads in four flips of a fair coin?
83
41
21
166
If a password is made by choosing three distinct letters from the alphabet, with letters being able to repeat, how many different passwords can be created?
263
15,600
26×25×24
78
How many different ways can a president, vice-president, and secretary be chosen from a club of 10 members?
What is the probability of selecting 3 red balls from a bag containing 5 red balls and 7 blue balls without replacement?
9910
125
221
121
In how many ways can a 4-member relay team be selected from a group of 8 athletes?
70
1680
24
56
What is the probability of drawing a heart or a club from a standard deck of cards?
There are ten toppings available to make an ice cream sundae. How many ways can Lala choose two?
แป้นคำตอบMastering Permutations and Combinations
คำถามทั้งหมด: 15
24
210
120
12
31
560
288
1024
83
263
720
9910
70
21
45