Identify the variance and the standard deviation of the given data set.
{7, 8, 6, 3, 4, 12, 14, 10} PLEASE HELP

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

What is the range for 31,39,29,34,37,24,36,33,34,28

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?