<prompt> In a group of 100 children, the mean weight of children is 15 kg. The standard deviation is 1.5 kg. Which one of the following is true?95 of all children weight between 12 and 18 kg95 of all children weight between 13.5- and 16.5kg99 of all children weight between 12 and 18 kg99 of all children weight between 13.5 and 16.5kg  <response>: n 100 children, Mean weight m 15 kg, SE 1.5 kg,95 of value are contained in Mean 2SD m 2s,Thus 95 of all children will have weight between 15 2 1.5 i.e. between 12 and 18 kg. 