Tom's trainer advised him to lose 3 pounds in the next four weeks how much is the daily caloric defect he needs to create either by reducing calorie intake or increasing calorie needs does that amount appear to be a safe goal?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Write 17/20 as a decimal and as a percent.

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?