The grades on the second statistics test for Mrs. Sweeney's class are in the following list. Find the frequency distribution for the grades. D, C, C, C, D, D, B, A, F, F, D, C, C, F, F, A, A, C, C, F C

Which of the following is/are part of descriptive statistics? central tendency. variability. linear regression. correlation. all of the above.

F-tests and t-tests are usually used to determine whether the experimental groups are significantly different from each other at a certain alpha level. True False

Inferential statistics determine if we can make statements about the general population based on the sample. .True

Cite as características que um bom diagrama de dispersão deve ter para facilitar a interpretação dos dados.

A significant result is one that has a low probability of occurring by chance (i.e. sampling error). False