Q1.
Which of the following is not a two dimensional diagram ?
(a) Rectangular diagram (b) Piechart (c) Line diagram
(d) Square diagram
Solution.
(c) Line diagram
Solution
Q2.
From which graphical representation we can calculate partition values ?
(a) ogive curve (b) frequency curve (c)
histogram (d) lorenz curve
Solution.
(a) ogive curve
Solution
Q3.
If variance of x is 6, then find the variance of (10 - 3x)
(a) 6 (b) 10 (c) 30 (d) 18
Solution.
(d) 18
Solution
Q4.
If the Q1 = 143 and semi-interquartile range is 18, find the value of P75.
(a) 130 (b) 160
(c) 179 (d) 180
Solution.
(c) 179
Solution
Q5.
In normal distribution mean, median and mode are .
(a) Not equal (b) Equal (c) Zero (d) None of these
Solution.
(b) Equal
Solution
Q6.
These are 5 books on maths, 4 books on statistics and 3 books on english. In how many ways can there books be placed on a shelf if
the books on the same subject are to be together ?
(a) 12! (b) 20! (c) 5! x 4! x 3! x 3! (d) 5! x 4! x 3!
Solution.
(c) 5! x 4! x 3! x 3!
Solution
Q7.
Price and demand is the example of:
(a) Positive Correlation (b) Negative Correlation (c) Zero Correlation
(d) None of these
Solution.
(b) Negative Correlation
Solution
Q8.
The two lines of regression become identical when.
(a) r = -1 (b) r = 0 (c) r = 1 (d) a & c
Solution.
(d) a & c
Solution
Q9.
The sum of all probabilities in a system are
(a) 0 (b) -1 (c) 1 (d) 2
Solution.
(c) 1
Solution
Q10.
For a poisson distribution P(x = 3) = 5 = P(x = 5), then SD is
(a) 4 (b) √2 (c) 3 (d) 5
Solution.
(b) √2
Solution
