xác suất sản phẩm sau khi sản xuất không được kiểm tra chất lượng là 0,2. xác suất để trong 400 sp sx ra có từ 30-90 sản phẩm không được kiểm tra bằng

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

What is r i 4.5+10r=-6.5 with work pls