Attempt all the problems

problem1) “All statistics are numerical statements of facts but all numerical statements of facts are not statistics” Expalin.

problem2)(a) What is statistical table? How is it constructed? describe the requisites of a good statistical table.

(b) What is skewness? Describe the different methods of measuring skewness.

problem3) Distinguish the following:

(a) Primary data and Secondary data

(b) Sampling and Non-Sampling errors

(c) Dispersion and Skewness

(d) Geometric mean and Harmonic mean

problem4) Determine median, Q3, D7, P75 from the following distribution.

Class –interval    0-10     10-20    20-30   30-40    40-50
Frequency             4             7         10         6           3

problem5) prepare brief notes on the following:

(a) Probability Sampling

(b) Statistical Derivatives

(c) Diagrams

(d) An Ideal Average