Answer:
2.002
Step-by-step explanation:
It is only 2 one thousandths.
Im not sure if you still want an answer but if you want i can give one to you sorry im late (:(
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:
has 25, wants 130, so he needs to save (130-25)= 105.
105/7= 15 weeks
25+7w= 130
Answer:
-25/6
Step-by-step explanation:
