Statistics Test...

In the graph you can find the takings of a chocolate bar for $$8$$ months.

The architecture student counted the number of bricks in each building in his neighbourhood. How many buildings are there in the interval $$6-20$$?

Use the histogram and find the sum of the number of students studying for $$4 - 5$$ and $$8 - 9$$ hours.

In the graph you can find the takings of a chocolate bar for $$8$$ months.

In the graph you can find the takings of a chocolate bar for $$8$$ months. Answer the following question

The histogram shows the age groups of working women in a city. Find the number of working women in the age group of $$29 - 34$$ years.

In which frequency polygon is best suitable for the following table.

Find the arithmetic mean of $$\dfrac {1}{2}, \dfrac {1}{3}, 2n$$ and $$m$$.

Brian got grades of $$92,89$$ and $$86$$ on his first three math tests. What grade must he get on his final test to have an overall average of $$90$$?

Which year did the same number of boys and girls attend the conference?