Let math xmlns=http://www.w3.org/1998/Math/MathMLmi mathvariant=normalX/mimo=/momo{/momi mathvar...

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Let math xmlns=http://www.w3.org/1998/Math/MathMLmi mathvariant=normalX/mimo=/momo{/momi mathvariant=normalx/mimo∈/momi mathvariant=normalN/mimo:/momn1/mnmo≤/momi mathvariant=normalx/mimo≤/momn17/mnmo}/mo/math and math xmlns=http://www.w3.org/1998/Math/MathMLmi mathvariant=normalY/mimo=/momo{/momiax/mimo+/momi mathvariant=normalb/mimo:/momi mathvariant=normalx/mimo∈/momi mathvariant=normalX/mimo}/mo/math and math xmlns=http://www.w3.org/1998/Math/MathMLmi mathvariant=normala/mimo,/momi mathvariant=normalb/mimo∈/momi mathvariant=normalR/mimo,/momi mathvariant=normala/mimo>/momn0/mn/math. If mean and variance of elements of \( \mathrm{Y} \) are 17 and 216 respectively then a+b is equal to :
(1) math xmlns=http://www.w3.org/1998/Math/MathMLmn7/mn/math
math xmlns=http://www.w3.org/1998/Math/MathMLmo(/momn2/mnmo)/momo /momo-/momn27/mn/math
(3) 9
math xmlns=http://www.w3.org/1998/Math/MathMLmo(/momn4/mnmo)/momo /momo-/momn7/mn/math
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