Question 1(Multiple Choice Worth 2 points) Find an equation in standard form for the hyperbola with vertices at (0, +2) and foci at (0, +7).

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?

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?