Let's see how well you understood our solve the following problems. Show your con step procedure. 1. The average number of milligrams (mg) o of ice cream is 660 mg, the standard dev normally distributed. a. If a cup of ice cream is selected, wh content will be more than 670 mg b. If a sample of 10 cups of ice cream the mean of the sample will be larg 2. In a study of the life expectancy of 400 pe mean age at death was 70 years, and th sample of 50 people from this region is s mean life expectancy will be less than 68 3. The average cholesterol content of a certa the standard deviation is 15 milligrams distributed. If a sample of 25 canned go that the mean of the sample will be great 4. The average public elementary school has of 87. If a random sample of 38 public ele probability that the number of students =