a. Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 53.3 degrees. Low Temperature ( ◦ F) 40 − 44 45 − 49 50 − 54 55 − 59 60 − 64 Frequency 1 4 11 6 2 The mean of the frequency distribution is degrees. (Round to the nearest tenth as needed.) b. Find the standard deviation of the data summarized in the given frequency distribution.

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp