minie66
27.08.2020 •
Mathematics
For questions 6a & 6b, calculate the mean for each group: 6a) Textbook A 6b) Textbook B Mean: Mean: 6) Which class performed better? 7) If the standard deviation for Class A was 26.3 and the standard deviation for Class B was 8.5, which class was more consistent?
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Ответ:
44 52 95 76 13 94 83 72 55 81 22 25 64
The mean is: 59.7
65 72 48 63 68 59 68 62 75 79 81 72 64
The mean is: 67.4
Ответ:
V = 1/4(h) sqrt/-a^4 + 2(ab)^2 + 2(ac)^2 - b^4 + 2(bc)^2 - c^4
V = 1/4 * 24 * sqrt/-13^4 + 2(13*13)^2 - 13^4 + 2(13*13)^2 - 13^4
V = 1756.3 yrds