12 SL: Variance & Standard Deviation

Complete the following questions before our next class.

(red textbook)
Exercise 12J questions 1, 3, 6, 13, 17 (13 and 17 are challenge questions)

Also (while we almost got to this yesterday), we can also calculate the variance and standard deviation (and the mean value) for a binomial distribution (which then answers the question: if we were to repeat this experiment several times, how “spread out” would our results be?). The formulas for these are given in the textbook (and the formula booklet). All you need to know is when (and how) to use them. See the questions below.

(black textbook)
20F questions 2, 4, 5