Tuesday

March 3, 2015

March 3, 2015

Posted by **Anna** on Sunday, November 15, 2009 at 10:48pm.

- Probability -
**economyst**, Monday, November 16, 2009 at 1:37pmWithout a zero, there must be 9^8 number of possible digits. Further there must be 8^8 possible digits that exclude both zero and 7. So, the probability at at least one seven appears is 1.-((8^8)/(9^8))

**Answer this Question**

**Related Questions**

Probability - The serial number on a $10 bill contains eight non-zero digits. If...

Math - A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, ...

Math - A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, ...

business math - What is the probability that a 8-digit phone number contains at ...

Math - A bag has 20 balls numbered from 1 to 20. If you guess the number of the ...

math-probability - A state lottery has a daily drawing to form a four-digit ...

stats - what is the probability that a 6 digit phone number contains at least ...

does anyone know probability???? - The digits 2, 3, 4, 7, and 8 are each used ...

probability - The digits 2, 3, 4, 7, and 8 are each used once in a random order ...

Probability - 1. You roll a number cube numbered one to six 12 times. P(5)=2/3. ...