Mathematics, 05.11.2020 18:50 crystalxolotp4q3la
5. A box contains 7 red marbles and 3 blue marbles. An experiment consists of
randomly selecting 2 marbles. Determine the probability of obtaining 2 red
marbles if the first marble selected is returned to the box before the second
marble is selected.
O 1/2
O 49/100
014/20
O 2/7
Answers: 3
Mathematics, 21.06.2019 18:30, viktoria1198zz
Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.
Answers: 1
Mathematics, 21.06.2019 20:30, kuddlebugsmommy
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.
Answers: 1
5. A box contains 7 red marbles and 3 blue marbles. An experiment consists of
randomly selecting 2...
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