Murphy sells kettle corn, quick kits for people that want to make fat cash with minimal effort to promote the kit. Murphy wants to calculate an average gross income by past purchasers the income and number of days it took to earn the stated incomes per person are listed in the following table Days 10 income 3900 day for income $2000 day seven income $3000 day two $500 what type of mean calculation will produce the most accurate average for this type of