Mean, Median, Mode and Range(Averages)

1) The maths test scores of 11 children are the following:

15, 18, 18, 19, 14 ,14, 15, 15, 17, 16, 15

Find the mean, median, mode and range of the scores.

2)  The heights of three brothers are 150 cm, 142 cm and 158 cm. What is the mean height?

3) There are five apples in a pack. The mass of the apples are

120g, 200g, 280g, 170g and 230g. Work out the mean and median.

4) The number of goals scored by a football team in a season are:

1, 2, 4, 3, 3, 2, 0, 1, 2, 3, 3, 1, 2, 2, 1, 2, 2, 3, 3, 0

Find the mean, median, mode and range.

5) The table shows the temperature recorded in a city in a week.

Monday          16°C

Tuesday          18°C

Wednesday     19°C

Thursday        15°C

Friday             17°C

Saturday         18°C

Sunday            16°C

Work out the mean, median, mode and range.

6) Five friends went strawberry picking in a farm. The following table shows the number of strawberries picked by each person.

Anna          135
Sam           127
James         131
John           145
Jake           112

Work out the mean, median and range.

7) The following table shows the amount of rainfall received in the first six months of a year.

January         27 mm
February       13 mm
March           75 mm
April            100 mm
May              25 mm
June              60 mm

Work out the mean, median and range.

8) The following table shows the amount made in lemonade sales during the six weeks of summer.

Week 1        £312
Week 2        £454
Week 3        £530
Week 4        £423
Week 5        £373
Week 6        £477

Work out the mean, median and range.