A development index is used as a measure of the standard of living in a country.

The bar chart below displays the development index for 153 countries in four categories: low, medium, high and very high.
 

1. How many of these countries have a very high development index?   (1 mark)
   

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2. What percentage of the 153 countries has either a low or medium development index?
3. Write your answer, correct to the nearest percentage.   (1 mark)
   

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The following bar chart shows the distribution of wind directions recorded at a weather station at 9.00 am on each of 214 days in 2011.
 

Part 1

According to the bar chart, the most frequently observed wind direction was

A.  south-east.

B.  south.

C.  south-west.

D.  west.

E.  north-west.

 
Part 2

According to the bar chart, the percentage of the 214 days on which the wind direction was observed to be east or south-east is closest to

A.  `10text(%)`

B.  `16text(%)`

C.  `25text(%)`

D.  `33text(%)`

E.  `35text(%)`