Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y = x squared + 2 x minus 5 a. D: all real numbers R: (y less-than-or-equal-to negative 6) c. D: all real numbers R: (y less-than-or-equal-to negative 5) b. D: all real numbers R: all real numbers d. D: all real numbers R: (y greater-than-or-equal-to negative 6) Please select the best answer from the choices provided A B C D

This assignment is past the original due date o this data is from a sample. calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 show the following answers to 2 decimal places. sample mean- sample standard deviation ( use the standard deviation above for your calculation.) sample variance ooops- now you discover that the data was actually from a population! so now you must give the population standard deviation.