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Helen [10]
2 years ago
12

Equivalent expressions to 7^3*7^x

Mathematics
1 answer:
Aleks [24]2 years ago
4 0
7^3 x 7^x
=7^(3+x)

This is one of the rule in indices.
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Trong kiểm định giả thuyết thống kê về so sánh trung bình với số cho trước, nếu tổng thể X không có phân phối chuẩn thì cần điều
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Answer:

Khi cỡ mẫu bằng hoặc lớn hơn 30 thì phân phối chuẩn.

Tuy nhiên, nếu tập dữ liệu không được phân phối bình thường, thì tập dữ liệu lớn hơn kích thước mẫu là 30

Step-by-step explanation:

Khi cỡ mẫu bằng hoặc lớn hơn 30 thì phân phối chuẩn.

Tuy nhiên, nếu tập dữ liệu không được phân phối bình thường, thì tập dữ liệu lớn hơn kích thước mẫu là 30

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