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• Level: GCSE
• Subject: ICT
• Word count: 1863

# Do Older Children at South Dartmoor Community College Get More Pocket Money than younger children do?

Extracts from this document...

Introduction

Middle

(41.50 + 56 + 70 + 76.50 + 76.50) 60 = �5.34 (to the nearest whole penny) I am going to draw a Cumulative frequency graph to show the data for the whole school. From the graph I will be able to work out the interquartile range and find the middle value. To do this graph I need to group all my data I have done this in the table below. Group Tally Total Cumulative Frequency 0?x<2 Illll 5 5 2?x<4 Illlllllllllllll 16 21 4?x<6 Illllllllllllllllll 20 41 6?x<8 Illll 5 46 8?x<10 Illll 5 51 10?x<12 Illll 5 56 12?x<14 Ill 3 59 14?x<16 I 1 60 From the table I can see that the modal group is 4?x<6 this shows that one of the averages lies between those values. Look at Cumulative Frequency Graph. From my graph you can see that the mid point or mid value is �4.70. This corresponds with the modal group of 4?x<6 as �4.70 lies in that group. The interquartile range can also be worked out. To do this I must do the following sum. �7.40 - �3.30 = �4.10 This shows the range or spread that the majority of the amounts received lie in. I have found lots of averages but I think the mean gives the best indication of an average as it takes in to consideration all the values. ...read more.

Conclusion

�5.00 �5.00 �5.00 �5.00 �15.00 Year 9 Modal value = �4 and �5 and �10 �0.00 �2.00 �2.50 �3.75 �4.00 �4.00 �5.00 Median �5.00 �5.50 �8.75 �9.50 �10.00 �10.00 Year 10 Modal value = �5 �3.00 �4.00 �5.00 �5.00 �5.00 �6.00 Median �8.00 �8.50 �10.00 �10.00 �12.00 Year 11 There are 2 middle values. When this happens the 2 values are added and then divided by 2. Because the 2 values are the same the median is �7.50. Modal value = �7.50 �2.50 �3.00 �5.00 �7.50 �7.50 Median �7.50 Median �9.00 �10.00 �12.00 �12.50 I have now showed that the higher year groups on average are receive more pocket money per week than a lower year group on average. I say that because they are not outliers as such but there are some small exceptions in some of the years. Conclusions: * The higher years get more pocket money than the lower years. * Boys and girls are treated equally when it comes to pocket money * Once you reach year 9 you receive higher than the average amount of pocket money received by a student * I predicted the amount received by a year 7 would be about �3 this prediction was correct * I predicted that by year 11 a student would be receiving �10 this is incorrect as the average for a year 11 is only �7.50 ?? ?? ?? ?? ...read more.

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