Posted by 6th grader on Tuesday, March 27, 2012 at 8:23pm.
If you roll a fair number cube 30 times, how many times would you expect to roll a number less than 3

math  Ms. Sue, Tuesday, March 27, 2012 at 8:46pm
2/6 * 30 = 10 times

math  6th grader, Tuesday, March 27, 2012 at 9:34pm
can you explain each step?

math  7th grader, Wednesday, April 20, 2016 at 6:43pm
2 (total numbers less than 3 on a cube)
__
6 (total numbers on a cube)
2/6 * 30 (30 is how many time you rolled)
2/6 * 30 =10 times