The standard deviation of a sample is proportional to 1/√N where N is the sample size. In this case we are decreasing N by half, so we can write:
1/√(N/2) = √2 / √N
If we say that our standard deviation is proportional to 1/√N, the difference that occurred from decreasing the sample size by half resulted in an increase in the standard deviation by a factor of √2.
Therefore, the standard deviation is multiplied by √2.
Answer:
times 10 years to the percentage
Step-by-step explanation:
8 Sundaes
Sense its 4 spoonfuls per sundae our equation to find how many sundaes was made looks like this:
32÷4=8
Answer:
if the question is 2xy²(23x²y³) then the answer is 46x³y^5
Step-by-step explanation:
Answer:
x = 1 or x = -3
Step-by-step explanation:
+ bx + c = 0
x = 
as 
+ 2x - 1 = 2 ⇔ + 2x - 3 = 0, its solution is
x = 
= 
= 
= 
therefore, x = 1 or x = -3
hope this helps! :D
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