i am having trouble with these set of questions.

Given the values for x, calculate the value of E x2. X 3 5 9\f\f\fE wx Given the values for x and w, calculate the value of Ew X W 2 3 3 O 2 7 W 11Round the value to the given place. 21,094 to the nearest thousand Which values below, when rounded to the nearest hundredth, would be 0.26? [Check all that apply to receive full credit] C] 0.26559 C] 0.26499 C] 0.25786 C] 0.25186 Round the value to the given place. 17.6617 to the nearest hundredth Determine whether the following statement is true or false. According to the rounding rule for the mean, the mean of the following numbers is 8. 9. 0 True 0 False Determine whether the following statement is true or false. According to the rounding rule for the mean, the mean of the following numbers is 1 1.81 8. 7.34 10.26 13.81 15.86 0 True 0 False \f\f\fTrue or False: Using the calculator to determine nxx n(n1) when n = 5 and x = 3, below is the correct picture of what to type in. 0 True 0 False Let a = 7, b = 18, c = 12, d = 5, and e = 4. Use your calculator to evaluate the expression below. d(c - a) - e d2 - b