Wasted FoodWasted Food

By Anne, Nicky and SarahBy Anne, Nicky and Sarah

IntroductionIntroduction

We investigated the weight of food wasted We investigated the weight of food wasted per day in Hot Lunch because we wanted per day in Hot Lunch because we wanted to show people how much precious food, to show people how much precious food, which people in poor countries need so which people in poor countries need so badly, is wasted by the middle school badly, is wasted by the middle school students. To do this we weighed the students. To do this we weighed the buckets of wasted food every day for one buckets of wasted food every day for one week.week.

ResultsResultsW

eigh

t of

was

ted

food

In

gram

s

Days

GraphsGraphs

DaysDays Weight of Weight of food wasted food wasted with bucketwith bucket

Weight of food Weight of food wasted without wasted without bucketbucket

MondayMonday 7,200g7,200g 4,587g4,587g

TuesdayTuesday 3,850g3,850g 2,932g2,932g

WednesdayWednesday 7,060g7,060g 6,142g6,142g

ThursdayThursday 5,650g5,650g 4,732g4,732g

FridayFriday 7,060g7,060g 6,142g6,142g

AveragesAverages

The mean weight of wasted food is 5,246g The mean weight of wasted food is 5,246g per day. per day.

The median is 6,142.The median is 6,142. The mode cannot be calculated as all The mode cannot be calculated as all

pieces of data are different.pieces of data are different. The range is 3,350.The range is 3,350.

Working out the mean, Working out the mean, median and rangemedian and range

To work out the mean, we added the weights of To work out the mean, we added the weights of food wasted each day together and divided them food wasted each day together and divided them by five: 6,282g + 2,932g + 6,142g + 4,732g + by five: 6,282g + 2,932g + 6,142g + 4,732g + 6,142g = 26,230g : 5 = 5,246g6,142g = 26,230g : 5 = 5,246g

To work out the median, we ordered the weights To work out the median, we ordered the weights lowest to highest and took the one in the middle: lowest to highest and took the one in the middle: 2,932g, 4,732g, 6,142g, 6,142g, 6,282g. Middle 2,932g, 4,732g, 6,142g, 6,142g, 6,282g. Middle = 6,142g.= 6,142g.

To work out the range, we subtracted the lowest To work out the range, we subtracted the lowest weight from the highest: 6,282g - 2932g = weight from the highest: 6,282g - 2932g = 3,350g3,350g

Working out the weight of Working out the weight of wasted foodwasted food

To work out the weight of wasted food, we To work out the weight of wasted food, we measured the buckets in the lunchroom measured the buckets in the lunchroom without food (306g). Then we measured without food (306g). Then we measured the buckets with food every day after Hot the buckets with food every day after Hot Lunch, added their weights together and Lunch, added their weights together and subtracted the weight of the buckets (918 subtracted the weight of the buckets (918 as there are three buckets). Ex. 1,600g + as there are three buckets). Ex. 1,600g + 1,560g + 3,900g = 7,060g - 918g = 6,142g1,560g + 3,900g = 7,060g - 918g = 6,142g

How can we use this data?How can we use this data?

We are using this data to show people how We are using this data to show people how much food we are wasting.much food we are wasting.

To make this even more clear to people we To make this even more clear to people we found out how many plates of food could be found out how many plates of food could be made of the food we waste.made of the food we waste.

We came out with this: The average food only We came out with this: The average food only the middle school hot lunch students waste the middle school hot lunch students waste every week could fill 50 plates. That could give every week could fill 50 plates. That could give 50 children in poor countries a meal.50 children in poor countries a meal.

What we learnedWhat we learned

We learned how to collect data We learned how to collect data independently.independently.

We learned how to calculate the mean We learned how to calculate the mean median, mode and range with real life median, mode and range with real life things.things.

We learned that often you do not see all We learned that often you do not see all the challenges you have to face in a the challenges you have to face in a project beforehand.project beforehand.