1. 5 3/4 + 5/6 + 2 1/2
2. 3 1/3 - (5 - 1 5/6)

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

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.