Currently, the standard deviation is 10, because on average the cards were $10 away from the mean.
Adding another card with value $25 would decrease the standard deviation because it is closer to the mean the the current standard deviation.
Answer:
Adobe Family Tools
Step-by-step explanation:
The perimeter of a square is 4 times the length of its side. Therefore, the answer to this problem is 4x+3.
So the formula for slope is (y2 - y1)/(x2-x1), so here that would be
(-5-(-20))/(-18-(-18)) which would simplify to
(-4 +20)/(-18+18) = 16/0 and you cannot divide by 0 so the slope would be undefined