CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

Question : 12 of 29

Marks: +1, -0

A die is thrown 6 times. If "getting an odd number" is a "success", what is the probability of (i) 5 successes ? (ii) atmost 5 successes?
OR
The random variable

{\X}

has a probability distribution

{\P}( {\X})

of the following form, where '

{\k}

' is some number.

{\P}( {\X}=x)={\{\table {\k}, , \;\text " if "\; x=0 ; 2 {\k}, , \;\text " if "\; x=1 ; 3 {\k}, , \;\text " if "\; x=2 ; 0, , \;\text " otherwise "\; }.

Determine the value of '

k

Solution:

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