two dice rolled 300 times i do not know how to get the value in probability colu
ID: 3132910 • Letter: T
Question
two dice rolled 300 times
i do not know how to get the value in probability column?
Calculate the probability that the dice are unloaded. Solution Eleven cells have been observed with only one restriction: the number of rolls of the dice is fixed. Thus, F = 11 - 1 = 10. If the dice are unloaded, a short listing of the combinations of the dice will give the probability of occurrence for each number. The expected value of each number is then the probability multiplied by 300. the total number of throws. The values of interest are tabulated as follows: From these data the value of chi-squared is calculated as 8.034. If Table 3.6 is consulted, the probability is given as P = 0.626.Explanation / Answer
when 2 dice re rolled once then we have 36 outputs ie;
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
.......................................
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6,1 6,2 6,3 6,4 6,5 6,6.
in order to get a sum of 2 we hve only 1 outcome 1,1 therfore probbility is 1/36
sum of 3 we hve 2 outputs namely 1,2 2,1 the probability is 2/36 = 1/18
sum of 4 we have 3 outputs namely 1,3 2,2 3,1 = 3/36. = 1/12
similarly for 5 we got 4 outputs ,for 6 we have 5 ouputs , for 7 we get 6 ouputs , for 8 - 5 o/ps , 9 - 4 o/ps ,
10 - 3 o/ps, 11 - 2 o/ps , 12 - 1 o/p
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