Q. 1. Complete the below statements with an appropriate word. (Rubrics: I mark eachfar correct answer, for 4' questions Total 4 marks) 1) The number of grocery items is variable 2) An estimate for a usually parameter is usually provided by observable statistic. 3) The class interval of classes 10-29, 30-49, 50-69 is 4) The value of changes from sample to sample