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anonymous
 one year ago
second part @jim_thompson5910
anonymous
 one year ago
second part @jim_thompson5910

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2for the first column, under the \(\large x_i  \bar{x}\), you will subtract the mean from each score (score minus mean)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it will be 9090,9090,9080,90100,etc @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes and the results will all go in that column

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0are u sure its not the mean score @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it's score  mean

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that's what the xi  xbar means xi is the score

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433566821653:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433566832765:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so some will be negative @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433566847436:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes it's normal to have negative differences

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so how I find the total? @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you add up all of the numbers in the column to get the total

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you'll have 3 totals (one per column)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the numbers I got were 0 0 10 10 9 9 8 and 8 and the total was 0 @jim_thompson5910 if this is correct I am ready to find the M.A.D

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2now take the absolute value of each result that will form the next column over

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.20 = 0 0 = 0 10 = 10 etc etc

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so will 10 be 10 or just stay 10 @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2anything positive will stay the same

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2absolute value measures distance that number is from 0

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2distance is never negative

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0add em all up for the total again @jim_thompson5910

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how to find the variance @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2square everything in column 1 to get column 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.20^2 = 0 0^2 = 0 (10)^2 = 100 10^2 = 100 etc etc

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2to get the MAD value, you add up everything in column 2 then divide by n = 8 to get the variance, you add up everything in column 3 then divide by n = 8 the standard deviation is equal to the square root of the variance

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did u get 490 for the total of the variance @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2divide 490 by 8 to get the variance

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do these measures of spread tell you about Bryce grades? @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I'm not sure what kind of answer they want here

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2But the general rule is that the larger the standard deviation, the more spread out the scores are

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so who do you think should still win after all the work we have done... I still say Bryce @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I'm not sure of that either. The two students both have good grades, but I guess Bryce has a higher max and Q3
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