What is the Mean Absolute Deviation of the following number?
6,45, 24, 19,75, 15

4+6x-3x^3 in standard form with explanations because i don’t understand

Two lines that do not intersect are skew. always sometimes or never

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.