<prompt> In a group of 100 children, the mean weight of a child is 15 kg. The SD is 1.5 kg. Which one of the following is TRUE95 of all children weigh between 12 and 18 kg95 of all children weigh between 13.5 and 16.5 kg99 of all children weigh between 12 and 18 kg99 of all children weigh between 13.5 and 16.5 kg  <response>: Ans. is a 95 of children weigh between 12 kg 18 kg Mean 15 kgSD 1.5 kgAs we know that area between 1 standard deviation on either side of a mean will include approximately 68 of the value in distribution. So 68 of children will weigh between 13.5 16.5 kg. 15 - 1.5Area between two standard deviation on either side of mean will include approximately 95 of the values in distribution. So 95 children will weigh between two standard deviation i.e., between 12 and 18 15 - 3.99 of children will weigh bw three SD ie between 10.5 and 19.5 kg 15 - 4.5. 