Which of the following is a good definition of a "normal" data set?

(Select all that are correct.)

Group of answer choices

Most of the data is close to the mean of the data set.

The participants were selected at random.

The data was collected in a "normal" method.

The data should fit a symmetrical histogram with the most frequent values being in the center.

The mean, the median, and the mode should be relatively close to each other.