I don't know, Sorry, but I will keep looking at it to see if I can figure it out, Sorry
The exponent is 3. 2 to the 3rd power is 8
Often, variability is most usefully expressed in the same units as the original data. That's what <em>standard deviation</em> (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.
25 coins because 50+20+5 = 75. Then divide 75 by 3 = 25. Each bag has 25 coins.
Hope that helps!!
