43. This is a standard deviation contest. You must choose four numbers from the whole numbers 0 to 10, with repeats allowed.
43.
(a) One possible answer is 1, 1, 1, 1.
(b) 0, 0, 10, 10
A12
(c) Yes. Any set of four equal numbers yields the smallest possible value for s: 0.
(d) No. Within the 0 to 10 constraint, numbers can't deviate any further from the mean.