# Recent questions tagged combination

121
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Event 'A' has a 50% chance of ocurring.The only way event 'B' can occur is if event 'A' occurs;If event 'A' occurs, event 'B' has a 50% chance of occuring.The only way ev...
81
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I'd like to know the probability of winning a particular bettingprogression that utilizes the "parlay bet". A parlay bet is when youlet all your winnings ride on the ver...
80
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Of the four ways a molecule can be represented, which is the most convenient way to use in studying organic chemistry?
99
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Do more people playing decrease my chances of winning lotto?
141
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Can certain numbers increase my chances of winning lotto?
125
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How does buying more lotto tickets affect my chances of winning?
120
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What's the probability of winning the lotto with a single ticket?
138
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Consider the letters of the word SMARTPHONE.How many word arrangements can be made with all of the letters with repetition if the letter S must come first followed by the...
121
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Consider the letters of the word EDUCATION.How many six-letter word arrangements can be made with all of the letters with no repetition?
107
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Consider the letters of the word EDUCATION.How many six-letter word arrangements can be made with all of the letters with repetition?
104
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Consider the letters of the word EDUCATION.How many word arrangements can be made with all of the letters with no repetition?
107
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Consider the letters of the word EDUCATION.How many word arrangements can be made with all of the letters with repetition?
112
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In how many ways can four Maths books, three Geography books and two Science books be arranged on a shelf if the maths books must be together?
82
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In how many ways can four Maths books, three Geography books and two Science books be arranged on a shelf in any order?
103
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How many word arrangements can be made with the word ANGELIC if the letters A, N and G must be together? The other letters may be repeated.
101
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How many word arrangements can be made with the word POWERFUL if the letters W, E and P must be together? Letters may not be repeated.
133
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How many word arrangements can be made with the word POWERFUL if the letters may not be repeated?
358
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What is the expected value of winning the South African Lotto?
564
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If I play five lines of six numbers out of a possible 49 in the South African lotto, what is the probability of winning in a draw? use latex
647
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If I play one line of six numbers out of a possible 49 in the South African lotto, what is the probability of winning in a draw? use latex
248
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Permutation vs. combination
520
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In how many possible orders can the letters of the word MATHEMATICS be arranged?
707
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In how many ways can the letters of the word ASSASSINATION be arranged so that all the S's are together?
762
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In a college $$25 \%$$ of boys and $$10 \%$$ of girls are offered mathematics. The girls constitute $$60 \%$$ of the total number of students. If a student is selected ra...
459
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Six boys and six girls sit in a row at random. Find the probability that boys and girls sit alternately.
866
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In how many ways can the letters of the word DIRECTOR be arranged so that the three vowels are never together?
369
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The number of arrangements of the letters of the word BANANA in which two N's do not appear adjacently is :
569
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In how many ways can 5 people be arranged in a circle such that two people must sit together?
1.5k
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In how many ways can 6 girls and 2 boys be arranged in a row(a) without restriction?(b) such that the 2 boys are together?(c) such that the 2 boys are not together?
589
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In how many ways can 5 people be arranged in a circle?
733
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In how many ways can the six letters of the word "mammal" be arranged in a row?
770
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How many different ways can the letters of the word MATH be rearranged to form a fourletter code word?
659
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Evaluate $$\left(\begin{array}{l}n \\ 0\end{array}\right)+\left(\begin{array}{l}n \\ 2\end{array}\right)+\left(\begin{array}{l}n \\ 4\end{array}\right)+\cdots+\left(\begi... 667 views 1 answers Evaluate \(\left(\begin{array}{l}n \\ 0\end{array}\right)-\left(\begin{array}{l}n \\ 1\end{array}\right)+\cdots+(-1)^{n}\left(\begin{array}{l}n \\ n\end{array}\right)$$
588
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Evaluate $$\left(\begin{array}{l}n \\ 0\end{array}\right)+\left(\begin{array}{l}n \\ 1\end{array}\right)+\cdots+\left(\begin{array}{l}n \\ n\end{array}\right)$$
697
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What is a linear combination of vectors?
550
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True/False: The linear combinations $a_{1} \mathbf{v}_{1}+a_{2} \mathbf{v}_{2}$ and $b_{1} \mathbf{v}_{1}+b_{2} \mathbf{v}_{2}$ can only be equal if $a_{1}=b_{1}$ and \$a_...
923
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Explain the determination of the optimal price and output combination in a situation of monopolistic competition. Use the resulting equilibrium to illustrate the statemen...
869
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A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is:w) 2 x 10-2 faradsx) 5 x 10-2 faradsy) 2 faradsz) 5 fara...
729
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A two farad and a four farad capacitor are connected in series. What single capacitance is "equivalent" to this combination?
2.0k
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(a) Two Mathematics books, 5 different Physics books and 3 different Chemistry are to be arranged on a shelf. How many arrangements are possible if ;(i) books on the same...
631
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What is the difference between a permutation and combination?
472
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A small school has 4 teachers and 50 students.a. How many different committees can be formed from teachers and students if the committee consists of five people?b. How ma...
499
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Evaluate the expression $$C(7,5)$$
363
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What is a combination?
427
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If we toss a die and then toss a coin, how many different results are possible?
1.3k
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