Posted by **Andrew** on Friday, January 7, 2011 at 12:02pm.

If you toss a pair of dice 1,000 times, how many times would you expect to get a sum of 12 as the result?

1.)about 12 times

2.)about 27 times

3.)about 36 times

4.)about 100 times

The lesson doesn't show me how to work this. Whats the formula?

- Math -
**Reiny**, Friday, January 7, 2011 at 7:12pm
the prob of getting 12 when tossing 2 dice = 1/36

so the number expected doing this 1000 times

= 1000 x 1/36 = 250/9

= 27.777

so it would happen approx 28 times.

- Math -
**Anonymous**, Tuesday, September 11, 2012 at 10:11am
If you toss 3 coins 10,000 times, how many times would you expect that exactly 2 heads appear?

- Math -
**Anonymous**, Thursday, October 22, 2015 at 6:10am
Tossing a die= 1/36 and so, the number expected of doing this 1000= 1/36 *1000=27.77777778 Approximately 28

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