IC82 STATISTICS - 11

Que. 1 : Q1) Which of the following are properties of Normal Distribution?

   1.  a) The normal density function describes a continuous bell-shaped curve

   2.  b) In both directions from the mean, the curve is asymptotic to the horizontal axis

   3.  c) The normal curve is symmetrical about the mean:μ, at which point, f(x)  reaches its maximum value.

   4.  d) All of the above

Que. 2 : Q2) The admission for a specified course is subject to minimum ' Weighted Average' Marks and different weight is prescribed for each of the five subjects at Graduation is as follows: 1.w_1:Regional Language 2.w_2:English 3.w_3:Physics 4.w_4:Mathematics 5.w_5:Statistics. Find the Weighted Average for Student E?

   1.  a) 48.9

   2.  b) 55.4

   3.  c) 58.9

   4.  d) 65.1

Que. 3 : Q3) x- variables is taking 10 Values as follows: 20,25,30,35,40,45,50,55,60 and 65. The Arithmetic Mean of x Variable is calculated as under:

   1.  a) 32.5

   2.  b) 42.5

   3.  c) 52.5

   4.  d) 62.5

Que. 4 : Q4) The system of ___________ is the extension of Cluster Sampling, in which, the selection of clusters will be randomized at first stage, and among the selected clusters, the ultimate units will be selected on random basis, instead of taking all the ultimate units.

   1.  a) Stratified Sampling

   2.  b) Judgement Sampling

   3.  c) Cluster Sampling

   4.  d) Two-stage Sampling

Que. 5 : Q5) Which chart is a circle Diagram to project the figures under multiple characteristics and the proportion of frequency under each characteristics to total frequency is multiplied by 360 degrees to arrive at the sectoral angle in the circle for each such characteristics?

   1.  a) Multiple-bar chart

   2.  b) Compound bar chart

   3.  c) Pie chart

   4.  d) None of these