2 points
1) Which system of equations has the same solution as the system shown?
x - 2y = 10<...
Mathematics, 17.11.2020 06:50, banna01man
2 points
1) Which system of equations has the same solution as the system shown?
x - 2y = 10
3x + y = 11
(1) 2x + 2y = 10
3x + y = 11
(2) X-y = 5
3x + y = 11
(3) 4x + 4y = 10
3x + y = 11
(4) 2x - 2y = 20
-3x - y = 11
Answers: 2
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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
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