The standard deviation is approximately: A. R 22798 B. R 18864 R 21076 D. R 50184 Question 15 The co-efficient of variation along with its interpretatio A. 41.23\%; Data is highly clustered about the mean B. 41.23%; Data is moderately clustered about the C. 41.23% : Data is widely dispersed about the mea 41.23% : Data is moderately dispersed about the The standard deviation is approximately: A. R 22798 R 18864 R 21076 R 50184 Question 15 The co-efficient of variation along with its interpretation A. 41.23%; Data is highly clustered about the mean. 41.23\%; Data is moderately clustered about the m 41.23%; Data is widely dispersed about the mean. 41.23\%; Data is moderately dispersed about the me The mean of a set of 13 numbers is 16 . If a number is remo 12.5. The number that was removed is: A. 58 B. 59 57 60 Question 17 The mean and variance of a set of 9 observations have magn observations, of magnitude 9 and 7 are removed from the orig variance is approximately: A. 3.7 B. 3.8 3.6 3.5 The mean and variance of a set of 9 observations hav observations, of magnitude 9 and 7 are removed from variance is approximately: A. 3.7 B. 3.8 C. 3.6 D. 3.5 An estimate of the modal ages for this group of males is