# probability

posted by .

How many 3 digit odd numbers can be formed with the digits 1 through 9, if no digits is repeated in any number?

• probability -

Odd digits available
= n({1,3,5,7,9})
= 5
Numer of digits to be formed per number
= 3
Number of choices for first digit = 5
....
See previous question for methodology.

## Similar Questions

1. ### data management

from the digits 0,1,2,3,4,5,6,7,8,9 find the number of a) 4-digit numbers with repetition of digits b) 4-digit numbers without repetition of digits c) the number of odd 4-digit numbers with no repetition of digits d) the number of …
2. ### Math (Reiny)

Regarding my question below, when the question talks about digits 0-7 do we include the 0. In other words, are the possible digits 0,1,2,3,4,5,6,7 or 1,2,3,4,5,6,7?
3. ### Probability

How many different three-digit numbers can be formed using the digits 1,3,5,7 and 9 if the digits may be repeated?
4. ### math

A locker combination has three nonzero digits, and digits cannot be repeated. If the first digit is odd, what is the probability that the second digit is even?
5. ### math

A locker combination has three nonzero digits, and digits cannot be repeated. If the first digit is 3, what is the probability that the next digit is odd?
6. ### Math

You can only use the digits 0-9. I need an odd number that is a multiple of five with no repeated digits. Half the digits are odd and the other half is even. The largest digit in the number is in the tens place (but it is not the largest …
7. ### Math

I form a 3-digit number at random from the digits 1-9. What is the probability that my number has no repeated digits?
8. ### math help

How many 5-digit odd numbers can be made using the digits 3, 5, 6, 7 and 9, if digits cannot be repeated?
9. ### Math

How many 2-digit numbers can be formed using only the digits 2, 3, 5, and 6, if the digits are not be repeated within a number?
10. ### Math help (emergency)

How many 2-digit numbers can be formed using only the digits 2, 3, 5, and 6. if the digits are not repeated within a number?

More Similar Questions