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is anyone good at maths

deletedover 8 years

i need help with part b of this question

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deletedover 8 years
what form of engineering are you majoring in zhuorb
deletedover 8 years
probability is actually one of the cooler topics in high school maths
deletedover 8 years
holy crap i hate probablility
deletedover 8 years
zhuorb is probably right
deletedover 8 years
1 - 625/1296= 671/1296
deletedover 8 years
its 6 am so i don't really know how to do the second one but i assume it's (1/6)^4 ?
deletedover 8 years
part c work out the probability that there are no 6s then subtract from 1
deletedover 8 years
i know how to do first one yes also part c i just checked answer it says 671/1296
deletedover 8 years

apollo says

1) 1/1296

3) 625/1296


the answer to c is 1 - 625/1296
deletedover 8 years
third one is (5/6)^4
deletedover 8 years
first one is basically

1/6 x 1/6 x 1/6 x 1/6 x 1/6 x 1/6
deletedover 8 years
got any idea on part c?
deletedover 8 years
1) 1/1296

3) 625/1296
deletedover 8 years
You multiply by 4 because any one of the four dice could show up with a 6, so there are a total of four cases
deletedover 8 years
i got the first bit (125/1296) but why do you have to divide by 4 afterwards
deletedover 8 years
It's actually 125/1296 * 4 which is 125/324
deletedover 8 years
Yeah it isn't216, my bad
deletedover 8 years
i have the answer it's 125/324 i just don't know how to do it
deletedover 8 years
125/216
deletedover 8 years
no i also feel really stupid for asking
deletedover 8 years
deletedover 8 years
calc?
deletedover 8 years
fu ck