8. The Last Supper On the last night of Scout camp, Chris, his wife Jo and the 11 other adults sit down for
supper along one side of a long rectangular table.
Chris takes the central seat, with six adults on each side of him.
Jo must sit next to Chris.
Alex, Barb and Dave insist on being next to one another (in any order) on the side to
Chris's left.
Eddie, Fred and Gareth are fed up with Alex's snoring, so they refuse to be on the same
side of Chris as him.
Heather, Iris, Kane, Luke and Michael have no seating preferences.
How many arrangements of the adults are possible?

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.