Mathematics, 06.08.2019 05:20 selene29
Which of the following does not characterize stratified random sampling? a. nonrandom sampling is used b. the population is divided into strata that are distinct c. the population is divided into strata that are mutually exclusive and exhaustive d. the population is divided into strata that are homogenous
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Mathematics, 21.06.2019 15:50
Arectangle has a width of 9 units and length of 40 units. what is the length of a diognal. a. 31 unitsb. 39 unitsc. 41 units d. 49 units
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Mathematics, 21.06.2019 17:00
Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²
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Mathematics, 21.06.2019 20:30
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
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Mathematics, 21.06.2019 23:00
If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.
Answers: 1
Which of the following does not characterize stratified random sampling? a. nonrandom sampling is u...
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