If the square root of a number is equal to twice the same number what is the number?

What is the inverse of the function f(x) = 2x + 1?

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

How can you check that you have correctly converted frequencies to relative frequencies?