Question

http://prntscr.com/iwndci

Answer 1

@Marziman last one

Answer 2

So that means 4:12 probability

#1 Our sample space defines that there are 12 possible outcomes with only 4 months ending in R, therefore we have to decide on 4 of 12 months.
#2 Our outcomes are [OS, SS, NS, DS, ZS}. OS = October selected, SS = September Selected, NS = November Selected, DS = December Selected and ZS = Zero Selected.
#3 4:12 or 4/12 which gives us 0.33333333333333333333333333333333, .3 after rounding or 33%
#4 Since there isn't a statistical majority for the 4 months, it's unlikely that one of them would be selected considering they only make up for 33% of the total months.

Answer 3

Sorry for the late reply.

Answer 4

its okay thank you