Permu or Combi
Bernoulli
Pascal's Triangle
Binomial Expansion
The rth
100

10P5 means THIS.

What is 30,240?

100

A fair die has 4 faces numbered one to four. THIS is the probability of rolling a 2 exactly 3 times in 10 rolls.

What is 0.25?

100

THIS is the sum of the 11th row.

What is 2048?

100

Expand (a + 2m)3.

What is a3 + 6a2m + 12am + 8m3?

100

THIS is the 1st term of the binomial expansion

(a + y)5.

What is a5?

200

10C5 means THIS.

What is 252?

200

A fair die was rolled. THIS is the probability of rolling a 3 exactly 4 times in 5 rolls.

What is 0.003?

200

1, 1, 2, 3, 5, 8, 13, ... is THIS sequence.

What is FIBONACCI?

200

The coefficient of the 2nd term of the binomial expansion (2a + 3b)4 is THIS.

What is 96?

200

THIS is the 3rd term of the binomial expansion

(2a + b)5.

What is 80a3b2?

300

12C5 is also the same as THIS combination formula.

What is 12C7?

300

A fair coin was tossed. THIS is the probability of tossing a head exactly 5 times in 10 tosses.

What is 0.25?

300

Shading all even numbers will produce THIS.

What is SIERPINSKI'S TRIANGLE?

300

Expand (2a - b)2.

What is 4a2 - 4ab + b2?

300

THIS is the 5th term of the binomial expansion

(a + b)7.

What is 35a3b4?

400

THIS is the batting order for seven players on a 12-person team.

What is 3,991,680?

400

THIS is the probability that it will rain at exactly 3 out of the 7 days this week, if the chance that it will rain on any given day is 60%.




What is 0.19?

400

Every number in Pascal's Triangle corresponds to THIS formula.

What is COMBINATION?

400

The coefficient of the 3rd term of the binomial expansion (2a + 3b)4 is THIS.

What is 216?

400

THIS is the last term of the binomial expansion

(x + 2y)8.

What is 256y8?

500

THESE are the number of handshakes in a room of 20 people if each person shake hands with everyone else.

What is 190?

500

THIS is the probability that it will snow at exactly 2 out of the 7 days this week, if the chance that it will NOT snow on any given day is 30%.

What is 0.025?

500

The number 70 in the Pascal's Triangle corresponds to this combination formula.

What is 8C4?

500

(5x - 3y)0 is THIS when expanded.

What is 1?

500

THIS is the middle term of the binomial expansion

(m + n)6.

What is 20m3n3?