Mathematics, 25.03.2020 17:00 terabear2033
Of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do both. if 300 people polled purchase blu-ray discs and 280 purchase dvds and blu-ray discs, how many people only buy dvds? please help a. 300 b. 20 c. 280 d. 40
Answers: 3
Mathematics, 21.06.2019 14:00
Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?
Answers: 1
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.
Answers: 1
Mathematics, 21.06.2019 22:30
The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction
Answers: 2
Mathematics, 22.06.2019 00:00
Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,
Answers: 1
Of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do...
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