Question
The scatter diagram shows the rainfall and the average temperature in a city for the month of June, over a period of 10 years.
(a) What type of correlation does this scatter diagram show?
Answer/Explanation
Ans: Negative
(b) Describe the relationship between the rainfall and the average temperature.
Answer/Explanation
Ans: More rain [suggests] lower temperature oe
Question
The graph shows the temperature in Paris from 6 am to 6 pm one day.
(a) What was the temperature at 9 am?
(b) Between which two times was the temperature decreasing?
(c) Work out the difference between the maximum and minimum temperatures shown.
Answer/Explanation
(a) Seeing the graph , we can say that the temperature at 9 am is 15 degrees.
(b) Seeing the graph , we can say that, Between 2 pm and 6pm, the temperature was decreasing.
(c) From the graph,
maximum temperature = 27.5 degrees
minimum temperature = 12.5 degrees
Therefore, difference between them is
27.5 – 12.5
= 15 degrees