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Mathematics, 28.08.2021 04:00 abigail018

Bài 1 (2 điểm): Số điện năng tiêu thụ của 20 hộ gia đình trong một tháng (tính theo kWh) được ghi lại ở bảng sau:

101
70 152
65 65
70 85
120 70
115 85
120 70
115 65
90 65
40 55
101
a) Dấu hiệu ở đây là gì?

b) Hãy lập bảng “tần số”.

c) Hãy tính số trung bình cộng và tìm mốt của dấu hiệu?

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Answers: 1

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Bài 1 (2 điểm): Số điện năng tiêu thụ của 20 hộ gia đình trong một tháng (tính theo kWh) được ghi...

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