The eight cats in a pet store were weighed. their weights (in pounds) are given below. 7, 7, 7, 2, 3, 7, 6, 3, find the mode and the range of the data.

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?

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5

Hi, can anyone show me how to do this problem? 100 points for this. in advance