Question

Study the double bar graph shown below and answer the questions that follow:
(a) What information is compared in the above given double bar graph?
(b) Calculate the ratio of minimum temperatures in the year 2008 to the year 2009 for the month of November.
(c) For how many months was the minimum temperature in the year 2008 greater than that of year 2009? Name those months.
(d) Find the average minimum temperature for the year 2008 for the four months.
(e) In which month is the variation in the two temperatures maximum?

Answer 1

(a) The comparison of the minimum temperature of the year 2008 and 2009, during the months November to February

(b) The minimum temperature in the year 2008 for the month of November is 18 degree celsius

And minimum temperature in November of the year 2009= 15 degree Celsius

The ratio=$\frac{18}{15}=\frac{6}{5}$

i.e, $6:5$

(c) November and February are the 2 months of the year 2008 was greater than that of 2009.

(d) Average minimum temperature for 2008

$⟹\frac{(18+11+4+12)C}{4}=\frac{{45}^{o}C}{4}$

=${11.25}^{o}C$

(e) The variation of temperature was large, between two temperatures in the month of February.