+220 A spinning top is divided in eight parts equal in size. Lucas spins the top twice and adds up the outcomes. How big of a chance is there that he has a total of 16? And also how big of a chance is there that he has a total of 5?
+33661 I assume the sections of the top are numbered from 1 to 8.
There are 8*8 = 64 possible outcomes.
There is only one way of getting a total of 16, namely an 8 on the first spin and an 8 on the second spin. Hence the probability of getting a total of 16 is 1/64.
The ways of getting a total of 5 are:
1st spin 2nd spin
1 4
2 3
3 2
4 1
That is, there are 4 ways of getting a total of 5. Hence probability is 4/64 or 1/16.
+33661 I assume the sections of the top are numbered from 1 to 8.
There are 8*8 = 64 possible outcomes.
There is only one way of getting a total of 16, namely an 8 on the first spin and an 8 on the second spin. Hence the probability of getting a total of 16 is 1/64.
The ways of getting a total of 5 are:
1st spin 2nd spin
1 4
2 3
3 2
4 1
That is, there are 4 ways of getting a total of 5. Hence probability is 4/64 or 1/16.
