Mathematics, 06.10.2019 09:30 yjudon37
Which technique for gathering data (observational study or experiment) do you think was used in the following studies? explain your answer. (a) the u. s. census bureau tracks population age. in 1900, the percentage of the population that was 19 years old or younger was 44.4%. in 1930, the percentage was 38.8%; in 1970, the percentage was 37.9%; and in 2000, the percentage in the age group was down to 28.5% (the first measured century, t. caplow, l. hicks, b. j. wattenberg).
Answers: 1
Mathematics, 21.06.2019 17:30
Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?
Answers: 2
Mathematics, 21.06.2019 19:00
Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?
Answers: 1
Mathematics, 21.06.2019 22:30
Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
Answers: 1
Mathematics, 21.06.2019 23:00
Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.
Answers: 1
Which technique for gathering data (observational study or experiment) do you think was used in the...
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