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Mathematics, 24.06.2021 14:00 pizzaqueen95

Đo chỉ số mỡ sữa x ( tính theo %) của 130 bà mẹ sinh con ta được bảng số liệu:
Tìm các tham số của mẫu:
Mod(X);
2 2 2
X ; X ; S ; S ;S ' ; S '
x x x x

Chỉ số mỡ sữa dưới 4,2 thuộc loại tốt . Hãy tỉ lệ
ft
chỉ số mỡ
sữa tốt với độ tin cậy 98%.
Bài làm

Chỉ số [3,0 – 3,6) [3,6 – 4,2) [4,2 – 4,8) [4,8 – 5,4) [5,4 – 6,0) [6,0 – 6,6) [6,6 – 7,2)
mỡ sữa
Số bà mẹ 2 8 35 43 22 15 5

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Answers: 2

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Đo chỉ số mỡ sữa x ( tính theo %) của 130 bà mẹ sinh con ta được bảng số liệu:
Tìm các tham s...
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