Please do not post the same question twice as you have posted here as well: http://www.mathhelpforum.com/math-he...tribution.html

You want to know the expected number of 6's thrown in total or each time? Each time, the expected amount is simply . Likewise, multiply that by 200 for the total expected amount of 6's. There is no use for Binomial or Chi-Square unless you have a specific question such as the expected amount of throws with 2 or more 6's. That question used Binomial properties of probability.