Quiz-1 BB

# Quiz-1 BB - 1 A variable measured on interval/ratio scale...

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1. A variable measured on “interval/ratio scale can be represented by PDC curve. If, X- axis represents the value of the variable’s data points, what does the Y-axis represent in this graphical representation of the data? a. Frequency *b. Probability c. Length of scale d. Type of scale e. None of the above 2. In a PDC curve, the probability of having a point estimate (% of data for any specific value) is 3. In a normally distributed data, the mean, median and mode fall at the same point, *a. True b. False 4. In a normally distributed data, what percentage of data falls between +/- 1.96 times the standard deviation (s) from the mean on either side? 5. A point estimate of the value of an attribute existing in the population (parametric value of that attribute) from a sample data, would not be subject to error a. True *b. False 6. A prediction of the range of values within which the population parameter is likely to fall is called a:

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