Answer:
sandy
Step-by-step explanation:
3/10 = .3
3/7=.43
3/9=.333333
sandy then jeff then kim
This expression is easier than it looks like. I thought that to solve it you have for example to express the 2 via 10 * 5^-1 and stuff like that - but you can multiply and divide this expression by some factor. In our case first we multiply by conjunctive expression root(5-2root2) and the second by root(6+2root5). In first we get root16 and the second calculate.
See the attached picture for the answer and steps:
13.33 is the correct answer
Answer:
The margin of error is multiplied by
Step-by-step explanation:
margin of error (ME) from the mean can be calculated using the formula
ME= where
- z is the corresponding statistic of the given confidence level
- s is the standard deviation of the sample (or of the population if it is known)
Since margin of error is proportional with inverse of ,
if we cut the sample size in half, the margin of error is multiplied by .