The ages of the members of a gym have a bell-shaped distribution with a mean of 48 years and a standard deviation of 11 years. based on the empirical rule, what should you predict about the percentage of gym members aged between 26 and 70?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

What is r i 4.5+10r=-6.5 with work pls