Jose bought 6 chicken wings for $2. What was the cost of the wings in wings per dollar? Express your answer in simplest form.

What is the quadric regression equation that fits these data

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

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?