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DENIUS [597]
2 years ago
14

Which expression is equivalent to

Mathematics
2 answers:
erastovalidia [21]2 years ago
8 0
The answer isss Q:12
irina [24]2 years ago
3 0

Answer:

The answer is q12

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Answer:

(29-23)²/23 + (16-23)²/23 + (19-23)²/23 + (28-23)²/23

Step-by-step explanation:

Given :

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Expected value = (29 + 16 + 19 + 28) / 4

Where, 4 = sample size

Expected value, E = 23

χ² = (Observed value - Expected value)² / expected value

χ² = (29-23)²/23 + (16-23)²/23 + (19-23)²/23 + (28-23)²/23

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