mean median sd

What is the empirical relation between mean, median and mode? => mode = mean - 1 3 (mean - median) or mean = 3 median - mode or mean - mode = 3(mean - median) or mean - mode = 2 3 (mea..

Which of the following statement(s) is/are true? I. If a student secured 75th percentile in an exam, then it means that he scored 75 out of 100. II. A statistic that tells the number of standard deviations a data value is above or below the mean is called z score. III. The distr..

Tim has taken an aptitude test 8 times and his scores are 96, 98, 98, 105, 36, 87, 95 and 93. Is mean or median the better measure of central tendency? => Median or Mean..

The data represents the percentage of children suffering from vascular diseases in 8 selected areas of 2 different countries. Find the mean, median, mode and midrange for country 1 and country 2. => Country 1: 8.263%, 7.92%, 2.9%, 8.225% ; Country 2: 6.116%, 3.88%, 2.9%, 6.555% ..

Which is not part of the five-number summary? I. Q 1 and Q 3 II. The mean III. The median IV. The smallest and largest data values => III only or I only or IV only or II only..

Select the correct statement(s) on the standard normal distribution curve. I. The curve is sinusoidal (of the shape of sine curve). II. It is unimodal. III. The mean, median and mode are equal. IV. Area under the curve is assumed as 1. => II and IV only or III and IV only or II,..

Select the correct statement(s). I. A point estimate is a specific numerical value estimate of a parameter. II. The sample mean is a better estimator of the population mean than the sample median or sample mode. III. Of all the statistics that can be used to estimate a..

Which of the following statement(s) is/are true ? I. If the mean of the given data set 3, 6, 12, ___ is 9, then the missing number is 12. II. If the mode of the given data set 1, 0, 2, 5, 9, 11, 13, 14, 7, ___ is 0, then the missing number is 3. III. If the median of 2, 3, 11, 1..

Which of the following is true for the data set? 45, 30, 35, 40 and 25 => Median = 36, Range = 30 and Mean = 36 or Median = 35, Range = 22 and Mean = 34 or Median = 35, Range = 20 and Mean = 37 or Median = 35, Range = 20 and ..

Which measure of central tendency is the most appropriate for the data listed? 69, 65, 67, 72, 120, 76 => mode or mean or mean and median or median..