Question

1. the table lists the average high temperatures for january and july for several canadian cities. it gives you an idea of how warm it gets during the winter and how warm it gets during the summer, on average. in which city is the difference between the average high temperatures in these two months the greatest? in which city is the difference the smallest? city winnipeg, mb saskatoon, sk quebec city, qc edmonton, ab ottawa, on calgary, ab montreal, qc halifax, ns toronto, on vancouver, bc yellowknife, nt iqaluit, nu january (avg. high °c) -11.9 -10.1 -7.0 -6.3 -5.8 -0.9 -5.3 -0.1 -0.7 6.8 -21.4 -22.8 july (avg. high °c) 25.9 24.3 24.7 22.8 26.6 23.2 26.3 23.1 24.4 20.1 19.3 12.5

Explanation:

Step1: Calculate temperature differences for each city

For Vancouver: $20.1-(6.8)=13.3$
For Toronto: $24.6 - (-0.7)=25.3$
For Halifax: $23.1-(-0.1)=23.2$
For Montreal: $26.3-(-5.3)=31.6$
For Calgary: $23.2-(-0.9)=24.1$
For Ottawa: $26.6-(-5.8)=32.4$
For Edmonton: $22.8-(-6.3)=29.1$
For Quebec City: $24.7-(-7.0)=31.7$
For Saskatoon: $25.3-(-10.1)=35.4$
For Winnipeg: $25.9-(-11.9)=37.8$
For Yellowknife: $19.5-(-21.4)=40.9$
For Iqaluit: $12.7-(-22.8)=35.5$

Step2: Find city with smallest difference

By comparing the differences calculated above, Vancouver has the smallest difference of $13.3$.

Step3: Find city with largest difference

By comparing the differences calculated above, Yellowknife has the largest difference of $40.9$.

Answer:

The city with the smallest difference is Vancouver. The city with the largest difference is Yellowknife.