Answer:
12x+18/x+5
Step-by-step explanation:
P(not 5) =5/6 and P(5) = 1/6
If the first 5 is rolled on the 5th roll then the first four rolls were not 5
P(5 on fifth roll) = 5/6 x 5/6 x 5/6 x 5/6 x 1/6 = 5^4/6^5 = 625/7776 = 0.080375...
If you rounded off 129 to the nearest ten the answer would be 130
Step-by-step explanation:
3 + 4 + 5 + 6 + 6 + 7 + 8 + 8 + 9 + 9 / total of numbers or 10 = 65 ÷ 10 = 6.5 This is the mean.
3 - 6.5 = 3.5
4 - 6.5 = 2.5
5 - 6.5 = 1.5
6 - 6.5 = 0.5
6 - 6.5 = 0.5
7 - 6.5 = 0.5
8 - 0.5 = 7.5
8 - 0.5 = 7.5
9 - 0.5 = 8.5
9 - 0.5 = 8.5
MAD = 1.7