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Study the double bar graph given 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?

1 Answer

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(a) The double bar graph compares the information about minimum temperature (oC) of year 2008 and year 2009 during the months November to February

(b) Minimum temperature in the year 2008 for the month of November – 18°C

Minimum temperature in the year 2009 for the month of November = 15°C

∴ Required ratio = 18/15 = 6/5 i.e., 6:5

(c) For the month of November and February, i.e., 2 months the minimum temperature in 2008 was greater than that of 2009

(d) Average minimum temperature for 2008

= 11.25°C

(e) In the month of February, the variation in two temperatures is maximum.

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