The Estimates

QuestionToday my group decided to answer this question for the science fair: Who is better at estimating the unknown male or females?

The purpose of this project is to determine who is better at estimating the unknown, males or females. This is

important because we want to see if boy or girl thinking is better. We would

know who to go to if we needed an estimate.

Purpose

HypothesisOur hypothesis is that the girls will

be better estimators then

males. We believe this

because in our class girls get

better grades in math class.

Procedure

Materials

• Skittles• Snap cubes• Gram cubes• Marbles• Pencils• Jar

VariablesManipulated variable: male or female

Responding: estimate estimates

Constant- objects in jar for each trial-number of male and female estimators-size of jar

Directions1.Count the candy. Write the number

down. Keep number hidden2.Place candy in the jar.3.Have estimators estimate the same

number of candy in the jar. Record estimates.

4.Repeat steps 1-3 with snap cubes5.Repeat steps 1-3 with marble 6.Repeat steps 1-3 with pencils7.Calculate the average estimates8.Calculate the average difference

between actual and average estimates.

AVERAGE DIFFERENCE BETWEEN ACTUAL AND ESTIMATES

TRAIL

1 TRAIL

2 TRIAL

3 TRIAL

4 TRIAL

5 AVERAGE

MALES

145.1 90.5 10.0 83.1 49.4 75.62

FEMALES

129.2 92.5 42.0 82.6 33.4 75.94

Average Difference Between Actual and Estimates

CONCLUSION

• Our hypothesis was incorrect. Males are better than females. The average difference between the actual and the estimate for males was 75.62. The average difference between the actual and the estimate for females was 75.94. We repeated this investigation again we would ask more people to estimate.