Question

A four digit number (with no repetitions) is to be formed from the set of numbers {0,1,2,3,4,5,6,7}. Find the probability that the number
a) is even
b) is odd
c) is less than 4000
d) is less than 4000, given that it is greater than 3000

Answer 1

First, you must find the amount of numbers you may form through permutations.
\(8P4\).
Can you determine what 8P4 is?

Answer 2

Gotta go, my friends will help :)

Answer 3

kk