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Hi! Welcome to Lotte Mart.(乐天玛特）We have clothes at very good price(价格 ).We have sweaters in all colors at ¥ 16 each. Are they very cheap? And we have black trousers for only ¥9. We have blue bags for sports for just ¥7 for girls. T-shirts in all colours are ¥10 each. The white socks are only¥3. Can you believe it? Come and see in our supermarket.
Please fill in the table according to the advertisement(广告 )for the clothes. 

某电器商场销售甲、乙两种品牌空调，已知每台乙种品牌空调的进价比每台甲种品牌空调的进价高20％，用7200元购进的乙种品牌空调数量比用3000元购进的甲种品牌空调数量多2台．

投掷一颗骰子两次，将得到的点数依次记为a，b，则直线ax﹣by=0的倾斜角大于$\frac{\mathrm{\pi }}{4}$的概率为（　　）