Question

please solve these 2 question it is the chapter-probablity

Answer 1

hi Ishita ,

4.
a) P(occurence of 4) = favourable / total possibility = 1/8
b) P(even number) = {2,4,6,8} / 8 = 4/8 = 1/2
c) P(10) = 0/8 = 0
d) P(less than 4) = {1,2,3} / 8 = 3/8
e) P(less than 9) = {1,2,3,4,5,6,7,8} / 8 = 8/8 = 1
f) P(3 to 6) = {3,4,5,6} / 8 = 4/8 = 1/2

5.
Sample space when
a) Die is rolled once = {1,2,3,4,5,6}
b) Die is rolled twice
= {(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),
     (2,1),(2,2),(2,3),(2,4),(2,5),(2,6),
     (3,1),(3,2),(3,3),(3,4),(3,5),(3,6),
     (4,1),(4,2),(4,3),(4,4),(4,5),(4,6),
     (5,1),(5,2),(5,3),(5,4),(5,5),(5,6),
     (6,1),(6,2),(6,3),(6,4),(6,5),(6,6) }

Hope it helped
Let me know if any doubts
Cheers !!!

Answer 2

1.P( spinner lands on 4)=1/8
   P(spinner lands on an even number)=4/8
   P(spinner lands on 10)=0/8=0
   p(spinner lands less than 4)=3/8
   P(spinner lands less than 9)=8/8=1
   P(spinner lands on 3 to 6)=4/8
2.i)possible outcomes are 1,2,3,4,5,6=6 outcomes
  ii)possible outcomes =6*6=36 outcomes
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