Question

in statitics about identify of mean of. 1) Direct method. 2) step devaition. 3) assumed method.​

Answer 1

Answer:

You can use three of this methods but the most easy is direct mean method

Answer 2

Answer:

we easily find mean with all these method

Step-by-step explanation:

Formulas are

1.Direct method =sigma fixi / sima fi

2.step deviation=A+sigma fidi/sigma fi

3.assumed method=A+sigma fiui/sigma fi ×h

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