SOLUTION: when gregor mendel conducted his famous genetics experiments with plants,one example of 1064 offspring consisted of 787 plants with long stems and 277 plants with short stems. mend

Question 422109: when gregor mendel conducted his famous genetics experiments with plants,one example of 1064 offspring consisted of 787 plants with long stems and 277 plants with short stems. mendel theorized that 25% of the offspring plants would have short stems
a) if mendel's theory is correct ,find the mean and standard deviation for the numbers of plants with short stems in such group of 1064 offspring plants.
b) are the actual results unusual? what do the actual results suggest about mendel's theory?
please help
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
when gregor mendel conducted his famous genetics experiments with plants,one example of 1064 offspring consisted of 787 plants with long stems and 277 plants with short stems. mendel theorized that 25% of the offspring plants would have short stems
a) if mendel's theory is correct ,find the mean and standard deviation for the numbers of plants with short stems in such group of 1064 offspring plants.
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mean = np = 1064*0.25 = 266
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std = sqrt[npq] = sqrt[266*0.75] = 14.1244
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b) are the actual results unusual? what do the actual results suggest about mendel's theory?
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Actural results: 277/1064 = 0.2603
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Actual results are very close to the theoretical results.
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Cheers,
Stan H.
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