Question

Question :-

Two digit number is to be form from the numbers 2,3,4,5,6,7. Write sample space for the experiment.Repetition is allowed.​

Answer 1

$\huge\tt\red{Q}\tt\pink{U}\tt\blue{E}\tt\green{S}\tt\purple{T}\tt\orange{I}\tt\orange{O}\huge\tt\red{N}$

Two digit number is to be form from the numbers 2,3,4,5,6,7. Write sample space for the experiment.Repetition is allowed.

$\huge\tt\colorbox{pink}{Answer}$

Digits are {22,23,25,27,29,32,33,35,37,39,52,53,55,57,59,72,73,75,77,79,92,93,95,97,99}

∴Total digits are 25

Odd numbers are 20

∴ probability that an odd number is formed is

25

20

=

5

4

a multiple of 5

Numbers which are multiple of 5 are

{25,35,55,75,95}

∴ probability of multiple of 5 is

25

5

=

5

1

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Answer 2

Answer:

Digits are

{22,23,25,27,29,32,33,35,37,39,52,53,55,57,59,72,73,75,77,79,92,93,95,97,99}

∴Total digits are 25

Odd numbers are 20

∴ probability that an odd number is formed is

25/20

=

5/4

a multiple of 5

Numbers which are multiple of 5 are

{25,35,55,75,95}

∴ probability of multiple of 5 is

25/5

= 5/1