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Alex_Xolod [135]
3 years ago
9

Please give me the correct answer ​

Mathematics
2 answers:
jeyben [28]3 years ago
5 0

Answer:

Dr Drazzle lol

Step-by-step explanation:

what kind of a s.tupid name, anyway with a negative exponent, you can Express that by putting it as a denominator

Slav-nsk [51]3 years ago
3 0

Answer:

dr drazzle because his simplified form is most reasonable

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Answer:

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

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And since the value for D obtained is 0.5 we can consider this as a medium effect.  

Step-by-step explanation:

Previous concepts

Cohen’s D is a an statistical measure in order to analyze effect size for a given condition compared to other. For example can be used if we can check if one method A has a better effect than another method B in a specific situation.

Solution to the problem

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

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