Question

2. Calculate the arithmetic mean from the following frequency table :
Size
1 2 3 4 5 6 7 8 9
Frequency 2 60 101 152 205 115 79 40 1​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Discrete series

x freequency fx ( Frequency × x )

1. 2. 2

2. 60. 120

3. 101. 303

4. 152. 608

5. 205 1025

6. 115. 690

7. 79. 553

8. 40. 320

9. 1 9

€f= 755. €FX= 3630

( by adding

these

series )

DIRECT METHOD

X' = €FX/ N

X' = 3630/755

X' = 4.81 ANSWER