Line and Curve of Best Fit
Box and Whisker Plots
Measures of Dispersion
Z-scores
Mixure
100
find the line of best fit: round to nearest hundredth L1:0,10,20,30,40,50,60,70,80 L2:79.2,80.1,77.5,68.7,57.4,42.4,30.0,12.7,1.0
-1.06x+92.31
100
what is the upper quartile L1:6,7,7,8,8,8,9
8
100
find MAD (mean absolute deviation) -10,0,10,20,30
12
100
the mean of a test was 85 and the standard deviation was 4 what was one students score if his z-score was -.75
82
100
find the MAD(mean absolute deviation) L1:2.29,3.39,2.99,3.19,2.79,3.09,2.59,3.29
.28
200
find the line of best fit: round to nearest hundredth L1:1980,1984,1988,1992,1994,1998 L2:422,432,404,420,395,382
-2.29x+4969.05
200
what is the lower quartile L1:2,4,5,7,8,8,8
4
200
find MAD (mean absolute deviation) 8,9,10,11,12
1.2
200
the mean of a test was 85 and the standard deviation was 4 what was one students score if his z-score was -2.50
75
200
find the variance L1:2.29,3.39,2.99,3.19,2.79,3.09,2.59,3.29
29.38
300
what is the equation: round to the nearest tenth L1:1,2,3,4,5 L2:5085,5040,4950,4845,4700
-15.4x^2+-4.4x+5106
300
what is the upper quartile L1:1,2,2,4,6,7,7,7,9,9,9
9
300
find the standard deviation 1,3,12,15,19
7.17
300
the mean of a test was 81 and the standard deviation was 5 if one student scored a 83 what is his z-score
.4
300
what is the mean L1:1,5,8,0,2,4,12,16,19,23
9
400
what is the height of the ball after it travels 15 yds(include measurement in ft) L1:0,.5,1,1.5 L2:0,8.5,8.9,1.6
-3ft
400
what is the lower quartile L1:1,2,2,3,3,5,7,7,8,8
2
400
find the variance 62,54,49,62,48,53,50
29.38
400
this data set show heights of people in a classroom (76,66,67,69,73,74,72,71,75,69,72,70,78,70,71,73) what is the z-score for a height of 66
-1.8
400
find the line or curve of best fit L1:1,2,3,4,5 L2:5085,5040,4950,4845,4700 round to the nearest tenth
-15.4x^2+-4.4x+5106
500
find the milk consumption in one week of a 7-member family, round to nearest tenth L1:1,2,3,4,5,6 L2:1,1.5,2.2,3.8,4.7,5
14849.6
500
what is the upper quartile L1:1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
20
500
find the mean 120,108,145,129,102,132,134,118,108
121.78
500
this data set show heights of people in a classroom (76,66,67,69,73,74,72,71,75,69,72,70,78,70,71,73) what is the z-score for a height of 73
.5
500
find the line or curve of best fit L1:1,2,3,4,5,6,7 L2:123,124,145,166,173,178,181 round to the nearest hundredth
11.07x+111.43
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