Consider a two-way frequency table. Which of the following statements are true?
Select all that apply.
A. The sum of all marginal frequencies equals the total frequency
B. Arelative frequency is the ratio of a joint frequency and a marginal frequency
C. The sum of all joint frequencies equals the total frequency
D. The sum of all joint frequencies in a column equals the marginal frequency at the bottom of the column
E. The sum of all marginal frequencies in a row equals the total frequency

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for