4. For the list of numbers {38, 46, 45, 50, 52, 54, 58, 55,57), find the average and stan- dard deviation. You must do your computation by hand (you can use your calculator
to add, subtract, multiply, divide and do powers and roots, but you have to write
down what you compute and you cannot use an avg/SD property of a calculator to
compute them), and you must show all steps to receive full credit. It is best to or-
ganize everything into a table. How many numbers are within 1 SD of the average?
2 SD?

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

it's

what am i trying to find out. you didn't put up the whole question.

step-by-step explanation: