Answer:
root-mean-sqaure = 2.77 m/s
average = 2.72 m/s
The root-mean-square is always the largest because it takes account of the variance of the spread of the data. The increase is related to the fact that the data varies to sample.
Explanation:
The rootmean-square (R) is the square root of the squares of the valeus divided by the number of the datas.


R = √(46.03)/6
R = 2.77 m/s
The average speed is the sum of the speeds divided by the number of datas:

A = 16.3/6
A = 2.72 m/s
To determine the strength of potassium permanganate with a standard solution of oxalic acid.
Answer:
I believe the answer is "b". "During the experiment, the scientist has only one element, or variable, that is changed to test the hypothesis."
Explanation:
I remember from last year but I'm not totally sure. Good luck!
Neither of them are used in magnets they don’t attract metal