Question

a

Answer 1

need the table

Answer 2

well for part b the answer would be w because the average represents the average ant school w has the highest mean

Answer 3

not sure what irq and that last column represent

Answer 4

okay well for part a you have to use the last column do you understand what standard deviation represents?

Answer 5

okay well just incase you don't it basically means how accurate a value is https://en.wikipedia.org/wiki/Standard_deviation

Answer 6

the higher the deviation the less accurate

Answer 7

basically which of the three schools has the lowest standard of deviation

Answer 8

by the way this is the first time iv ever heard about standard deviation so im not 100 percent sure i would read the wiki if i was you

Answer 9

yeah

Answer 10

well for this question I think you need to be looking at measures of spread

so I'd be looking for smallest range, IQR and standard deviation as these all measure the spread of a data set.

that, for me would be the most consistent

Answer 11

My answer for part A is above...

Answer 12

Rule: the lower the standard deviation, the closer the scores get and clump together. The closer the scores, the more consistent the data.

Answer 13

The symbol \(\Large \sigma\) is the greek letter symbol sigma (lower case)
it represents the standard deviation

Answer 14

yes