Which of the sequences is an arithmetic sequence? a. -2, 6, -10, 14, -18 b. 1, 6, 12, 18, 14 c. -48, -24, -12, -6, -3 d. -2, -8, -14, -20, -26

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms