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3 years ago

Can you help me with this

Mathematics

1 answer:

hichkok12 [17]3 years ago

8 0

Answer:

37/24

Step-by-step explanation:

Since the denomenators must be consistent, both 8 and 12 have the common factor of 24.

the denominator of 8 must be multiplied by 3 to get to 24, but to multiply the denominator you must multiply the numerator by 3 which gives you

15/24

the denominator of 12 must be multiplied by 2 to get 24, so you must multiply 11 by 2 as well to get

22/24

add them together to get 37/24

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$Var(kX - k ) = Var(kX) = k^2 var(X) = k^2 /2$

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