Question

127.Find the coefficient of concurrent deviations from the following data:

Years: 1990 1991 1992 1993 1994 1995 1996 1997
Price: 25 28 30 23 35 38 39 42

Demand: 35 34 35 30 29 28 26 23

(a) 0.65 (b) -0.65 (c) 0.37 (d) -0.37​

Answer 1

Answer:

(c) 0.37

Step-by-step explanation:

127.Find the coefficient of concurrent deviations from the following data:

Years: 1990 1991 1992 1993 1994 1995 1996 1997

Price: 25 28 30 23 35 38 39 42

Demand: 35 34 35 30 29 28 26 23

(a) 0.65 (b) -0.65 (c) 0.37 (d) -0.37

Answer 2

Answer:

-0.65

Step-by-step explanation:

Concurrent deviation: If the deviation in one factor and the corresponding second factor have the same sign, then the deviation is said to be concurrent.

Coefficient of Concurrent Deviation calculated using

rC = ±√±[(2c - m)/m]

where

m = total no. of pairs of deviations

c = no. of concurrent deviations

Now consider the table attached

Since m denotes the total no. of pairs of deviations

⇒ m = 7

And c = no. of concurrent deviation

⇒ c  = 2

Substituting the values of m and c in the formula for Coefficient of Concurrent deviation we get:

rC = ±√±  [(2c - m)/m]

    = ±√±  [(2(2) - 7)/7]

    = ±√±  [(4 - 7)/7]

    = ±√±  [3/7]

    = ±√(3/7)

    = ±√(0.4285)

    = -0.65