2. Battery Packages: A convenient store sells AA batteries in 2 per package, 4 per package, 6 per package, and 8 per package. The store sells 5 two packs, 10 four packs, 8 six packs, and 2 eight packs over the weekend. A. Construct a probability distribution B. Find the mean, variance, and standard deviation of the number of batteries sold over the weekend at the store