Mathematics, 05.05.2020 07:01 harleyguerrieri
A particular paper included the accompanying data on the tar level of cigarettes smoked for a sample of male smokers who subsequently died of lung cancer. Assume it is reasonable to regard the sample as representative of male smokers who die of lung cancer. Is there convincing evidence that the proportion of male smoker lung cancer deaths is not the same for the four given tar level categories at the α = 0.05 level? (Round your answer to two decimal places.) Tar Level Frequency 0-7 110 8-14 331 15-21 526 ≥ 22 158
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Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial
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Mathematics, 21.06.2019 19:30
What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)
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Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?
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Mathematics, 21.06.2019 23:20
Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?
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A particular paper included the accompanying data on the tar level of cigarettes smoked for a sample...
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