Please answer the following questions

What would best predict shipping costs? Units shipped? Weight shipped? Sales value of units shipped? Ihe following data represents information relating to shipments made. Month June Jul S tember October Units Shi ed 10 000 2 ooo 15 ooo 20 ooo 12,000 8 ooo Wei t Shi ed Sales Value 7 500 8 760 9 200 10 500 7,600 6 ooo 350 ooo 432 ooo 420 ooo 400 ooo 300,000 320 ooo 1 Shi in Costs 38 ooo 42 ooo 50 100 72 500 41,000 35 600 The following show the relationship of each variable to total shipping cost Sales Value and Shipping Expense soooo 30000 20000 10000 100000 200000 300000 400000 Sales Value