Mathematics, 09.10.2021 14:00 sdepasquale24
Flavia was curious if a sample first quartile (or Q_1Q 1 Q, start subscript, 1, end subscript) was an unbiased estimator of a population first quartile. She started with a large normally distributed population of test scores whose first quartile was Q_1=70Q 1 =70Q, start subscript, 1, end subscript, equals, 70 points. She then took a random sample of 666 tests and calculated the first quartile of the sample. She replaced those tests and repeated this process for a total of 505050 trials. Her results are summarized in the dotplot below, where each dot represents the first quartile from a sample of 6 tests.
Answers: 1
Mathematics, 21.06.2019 16:30
Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9
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Mathematics, 21.06.2019 18:50
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.
Answers: 2
Flavia was curious if a sample first quartile (or Q_1Q 1 Q, start subscript, 1, end subscript) was...
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