+180 A baking club wants to form an executive committee. There are $20$ people in the baking club, including Mark. In how many ways can the baking club form an executive committee with $7$ people?
+947
A baking club wants to form an executive committee. There are $20$ people in the baking club, including Mark. In how many ways can the baking club form an executive committee with $7$ people?
This is a Combinations problem, of 20 items taken 7 at a time.
One way this is abbreviated is 20C7
it's calculated as 20!
–––––––––––
(7! • (20–7)!)
I can't write down the numbers.
20! is too big, something times e18.
My calculator screen won't display it all.
The final answer works out to 77,520
.
+947
A baking club wants to form an executive committee. There are $20$ people in the baking club, including Mark. In how many ways can the baking club form an executive committee with $7$ people?
This is a Combinations problem, of 20 items taken 7 at a time.
One way this is abbreviated is 20C7
it's calculated as 20!
–––––––––––
(7! • (20–7)!)
I can't write down the numbers.
20! is too big, something times e18.
My calculator screen won't display it all.
The final answer works out to 77,520
.
