_the length of time for a light bulb to burn out the number of phone calls a com

Question

_the length of time for a light bulb to burn out the number of phone calls a company receives 6. Select the correct scale of measurement for the following varia bles: Gender SATScore IDNumber a. nominal, ratio, nominal b. nominal, interval, nominal c. nominal, interval, ordinal d. nominal, ratio, ratio 7. For a symmetric distribution, which of the following statistics is a good measure for the middle of the data? b. median c. either mean or median 8. The IQR (interquartile range) is the difference between the 25th and 75th percentiles. It is not as likely to be affected by outliers and therefore is more robust than the overall range. a. true b. false 9. Now that you understand the many different ways your data could be distributed, type the letter of each example next to its appropriate shape. The blue curve on each histogram represents the shape of the normal distribution with the mean and standard deviation estimated from the sample. a. heavy-tailed b. light-tailed c. right-skewed d. normal e. left-skewed Match the term on the left to what it measures on the right by typing the letter of the measurement next to the term. 10. mean kurtosis a. location b. spread c. shape -median standard deviation variance mode

Explanation / Answer

6 c

7 c because for symetric distribution, mean and median are same

8 a true

9
1----normal
2----left skewed
3----right skewed
4----heavy tailed
5----light tailed

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