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Dinah F

vocabulary test with a mean score of 68 deviation 11 class of 36 students take test mean score 64 is it typica

a vocabulary test is given and the mean socre is 68 with a deviation of 11. A class of 36 students takes the test and have a mean score of 64. Is this class typical of others who have taken the test

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hplss.rmntc

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Yes, they are only 4 below the mean score which is much less than a standard deviation…. Although I’m not sure how you would prove this using statistical equations.
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4 years ago
Anonymous
2.5% Draw a sprint photograph of your commonly used distribution. the middle ninety 5% could be interior of two familiar deviations. What you choose is human beings outdoors of that ninety 5%, so which you have been close in thinking that it may be 5%. concern is, that 5% is to the left and correct of the advise. MENSA could be a especially crappy intense IQ society in the event that they permit in in basic terms those with extra effective than a hundred thirty IQ, or under 70 IQ :P. considering that a classic distribution is symmetric, you in basic terms take the 5%, and decrease it in 0.5. 5/2 = 2.5.
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Oyaya
Use the empirical rule!
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