Students in a college intro stats class have taken 3 tests before the final exam. The statistics from the first 3 tests from 3 different classes are shown in the table below. What would be the mean and the standard deviation of the sum of the test scores for the 3 classes?

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

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Aline passes through 3,7 and 6,9 what equation represents the line