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I will investigate whether people picked at random can estimate line length better than angle size.

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Introduction

Estimating lines & Angles I will investigate whether people picked at random can estimate line length better than angle size. I will then develop it by studying my answers and see if e.g 11 year olds are at estimating line length or angle size than 16 year olds. Hypothesis: People are better at estimating line length than angle size 16 year olds are better at estimating line length than 11 year olds. Method: * I'll draw 3 Lines on plain paper at different angles so they can not use markings on the paper to guess or help them get the length. * I'll also draw 3 angles on plain paper at different angles so they can not use markings on the paper to guess or help them get the size. * Then I'll pick the students a random by first numbering all the students, then using the random number generator on the calculator I can find the students I want by converting that number - e.g 88 - to a person - e.g Joe Bloggs year 7 * Then we ...read more.

Middle

Pupil no# Gender Age Angle 1 - cm Angle 2 - cm Angle 3 - cm Angles correct Mean errors 55 F 11 7 15 10 0 6.7 59 M 11 6 13 6 0 5 85 M 11 5 12 7 0 19.3 94 M 11 7 16 10 0 11.7 108 M 11 4 13 5 0 10 Yr 7 Total 134 F 11 5 20 8 1 8.3 10.17 55 F 12 10 20 15 1 30 59 F 12 7 15 9 0 6.7 85 M 12 6 15 7 0 6.7 94 F 12 15 30 20 1 5 108 F 12 3 6 4 0 48.3 Yr 8 Total 134 F 12 4 12 8 1 8.3 17.5 55 F 13 5 11 7 0 11.7 59 F 13 4.5 12 3 1 5 85 F 14 5 12 5 0 10.7 94 M 13 6 11 8 1 10.7 108 F 13 6 14 6 0 16.7 Yr 9 Total 134 F 14 5 15 6 0 8.3 10.50 55 F 15 6 13 ...read more.

Conclusion

11 Hypothesis conclusion People are better at estimating line length than angle size - I proved this by showing that the mean error for line length estimates was considerably lower than angle size estimates. Line lengths Overall line error total was 3.12 compared to the Overall angle error total, which was 25.90. This clearly shows people had a higher error mean on angle estimates than line length. People are better at estimating line length than angle size Is a true statement 16 year olds are better at estimating line length than 11 year olds - I proved this in both line length and angle size by showing that year 11's, 16year olds have a lower error mean that year 7's, 11 years olds. 4.43 - is the year 7's overall mean line length compared to the year 11's overall mean length of 0.63 - which clearly states that 16year olds can estimate line length better that 11 year olds. 16 year olds are better at estimating line length than 11 year olds Is a true statement By Ashleigh Jones 1 30/04/2007 ...read more.

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