Several probability expressions for a normal distribution are provided below. drag the correct percentage to each probability expression. items 68% 47.5% 13.5% 2.5% category ? ? ? ? +? ) p(? +2? ? x) ? ?

Tori examined the pattern of exponents in the table. based on the pattern, which statements are true? check all that apply.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?