Johnson runs 10 laps of a 400 metre running track.

He records the time he takes for each lap in a graph. 
 

 
For which lap number did Johnson record his fastest time?

Ms Granger measured and recorded the heights of all the students in her class, in centimetres.

She made a dot plot to show the heights of these 32 children.
 

What fraction of the students' heights are greater than 145 centimetres and less than 150?

Manuela weaves baskets to sell at the markets.

She weaves the same number of baskets each week.

At the end of each week she adds a point to the graph below that records the total amount of baskets she has weaved over all weeks combined.
 

What will be the exact total amount of baskets weaved by Manuella at the end of week 9.

This graph shows the number of customers in a stationery store at 10-minute intervals over 3 hours.
 

  
At which of these times was the greatest number of customers in the store?

There are 9 children in a year 7 class.

The heights of the children, in cm, are as follows:

   `139, \ 142, \ 137, \ 145, \ 145, \ 139, \ 148, \ 136, \ 147.`

Select the dot plot that correctly displays the data.