sum of first n even nos =n(n+1)
sum of first n odd nos=n²
So
Simplify the numerator
- x²x⁴x⁶..=x^(2+4+6..100times )
Simplify the denominator
- xx³x⁵..=x^{1+3+5..100times)
Sum of first 100 even nos
Sum of first 100 odd nos
So
The equation yields as
Answer: choice A
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Work Shown:
P(TV) = (number who watch tv)/(number total)
P(TV) = 30/100
P(TV) = 0.30
P(Girl) = (number of girls)/(number total)
P(Girl) = 55/100
P(Girl) = 0.55
P(TV)*P(Girl) = 0.30*0.55 = 0.165 which rounds to 0.17
We'll use this value later. So let's call this M = 0.17
Look in the "girl" row and "tv" column. The value 17 is here.
This is out of 100 people total, so
P(TV and Girl) = 17/100 = 0.17
Call this value N = 0.17
Because M = N = 0.17 approximately, this means that the two variables "TV" and "Girl" are approximately independent
So the equation P(TV and Girl) = P(TV)*P(Girl) is approximately true in this example.
This points to choice A being the answer.
Answer:
8
Step-by-step explanation:
I changed these to the positive values:
27 and 19 then did subtraction
27 - 19 = 8
Answer:
228
Step-by-step explanation:
Your phrasing is a little bit confusing but I'll assume that you're looking for the Least Common Multiple.
