Probability

3. The time (in minutes) spent on the internet by a sample of 28 elementary-school students is given below. 7 20 24 25 28 23 28 30 32 35 42 43 44 45 46 47 48 48 50 51 72 75 77 78 79 83 86 87 Compute the statistical measures of central tendency.r (sample mean, sample median, sample mode) and dispersion (IQRinterquartile range, SIQR-semi interquartile range, sample variance, mean absolute deviation, sample range)