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spayn [35]
2 years ago
7

Pl help it’s for a grade I will give you Brainly

Mathematics
1 answer:
sergij07 [2.7K]2 years ago
7 0

Answer:

b

Step-by-step explanation:

really no explanation, it's just what's divisible and the most of it

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Find the mean ( average):
105 + 104 + 110 + 112 + 114 + 106 + 108 +109 = 868
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Standard deviation:
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108.5 - 104 = 4, 4^2 = 16
110 - 108.5 = 1.5, 1.5^2 = 2.25
112 - 108.5 = 3.5, 3.5^2 = 12.25
114 - 108.5 = 5.5, 5.5^2 = 30.25
108.5 - 106 = 2.5, 2.5^2 = 6.25
108.5 - 108 = 0.5, 0.5^2 = 0.25
109 - 108.5 = 0.5, 0.5^2 = 0.25

12.25 + 16 +2.25 + 12.25 + 30.25 +6.25+0.25+0.25 = 79.75
79.75/8 = 9.96875, SQRT(9.96875) = 3.1573

Standard Deviation = 3.1573

108.8 +/- 1.96 *(3.1573/sqrt(8) = 110.687 and 106.312

110.687 - 108.5 = 2.19
108.5 - 106.312 = 2.19
 

Margin of error = +/- 2.19



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2 years ago
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Now: a=j+4
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