Homework Answers
answer)
9 out of 30 said that they are in or looking to apply to a health related field
So answer is 9/30 = 30%
Mean is given by n*p = 30*0.3 = 9
Variance = n*p*(1-p) = 30*0.3*0.7 = 6.3
Standard deviation = √variance = √6.3 = 2.50998007960
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12. Find the mean, standard deviation and variance. Show your work. a....
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Use a calculator to find the (a) mean (b) standard deviation (e) variance for Class Limits Frequency 10-20 21-31 32-42 43-53 54 64 65-75 5 10 7 18 7
Help An IQ test is designed so that the mean is 100 and the standard deviation...
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Question Help An IQ test is designed so that the mean is 100 and the standard...
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Use a calculator to find the (a) mean (b) standard deviation (e) variance for Class Limits Frequency 10-20 21-31 32-42 43-53 54 64 65-75 5 10 7 18 7
Help An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 8 IQ points of the true mean. Assume that o = 20 and determine the required sample size using technology. Then determine if this is a reasonable...
Having a hard time with the variance and standard deviation. Please
help! Thank you!!!
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Please help me from f) to v)
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