The city of Raleigh has 9300 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 450 randomly selected registered voters was conducted. 268 said they'd vote for Brown, 147 said they'd vote for Feliz, and 35 were undecided. Describe the sampling frame for this survey.
All citizens of Raleigh
All registered voters in Raleigh
All registered voters with telephones in Raleigh
The 450 voters surveyed
The 268 voters who said they'd vote for Brown
None of the above

Use the graph of the sine function y=2sinθ shown below

Which statement justifies why angle ebc measures 90?

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.