How many meters in 10 yards?
20 points
Name:__________________________ Date:____________ Period:______
Write your determination of the meters in 10 yards, right here:__________
Description: Each group of students measure the distance between ten
yard lines on the football field, using meter sticks. Data is pooled and the mean and standard
deviation is calculated.
Materials:
| 5 meter sticks
| student volunteers | |
Procedure:
| A | B | C | D | |
| Group | Width (m) | Mean width (m) | A-B | C2 |
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 | ||||
| 6 | ||||
| Total | -------- | |||
| Mean | -------- | -------- | -------- | -------- |
Calculate the standard deviation:
standard deviation (sd) = 
x = mean xn = a particular value of a measurement d = xi - xn= deviation
N = the number of measurements (N=5 in this case)
Below, write down the method the instructor uses to measure the field. Why is it a better, more accurate method?