Pls help me find the answer...
...
Answers: 1
Mathematics, 21.06.2019 20:30
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
Mathematics, 21.06.2019 22:50
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
Mathematics, 22.06.2019 00:30
Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6
Answers: 1
Mathematics, 22.06.2019 02:00
Point a is at 12, and point d is at 56. point c is midway between a and d, and point b is midway between a and c. which of these is the coordinate of b?
Answers: 3
English, 27.08.2019 05:00
Computers and Technology, 27.08.2019 05:00
Mathematics, 27.08.2019 05:00
History, 27.08.2019 05:00
Social Studies, 27.08.2019 05:00
Social Studies, 27.08.2019 05:00
Mathematics, 27.08.2019 05:00
Social Studies, 27.08.2019 05:00
Biology, 27.08.2019 05:00
Health, 27.08.2019 05:00
History, 27.08.2019 05:00
English, 27.08.2019 05:00
Mathematics, 27.08.2019 05:00
History, 27.08.2019 05:00