3) Find mean, mean deviation standard deviation.
20-30
30-L
4o-50
23
Answers
Step-by-step explanation:
You know share market is going bullish during the last several months. Collect weekly data on the share price of any two important industries during the past six months. Calculate the range of share prices. Comment on how volatile are the share prices.
ANSWER:
Month Price of shares
Tata Motors Price of shares Reliance
Oct.
Nov.
Dec.
Jan.
Feb.
Mar. 325
397
405
415
420
388 913.35
900.25
750.90
780.70
799.25
850.35
For Tata Motors
Highest Value=420
Lowest Value=325
Range (R) = Highest Value (H)− Lowest Value (L)
or, R₁ = 420 − 325
⇒ R₁ = 95
Coefficient of Range (CR1)=
H-L
H+L
=
420-325
420+325
=
95
745
=0.127
For Reliance
Highest Value= 913.35
Lowest Value= 750.90
Range (R)= Highest value (H)− Lowest value (L)
or, R₂ = 913.35 − 750.90
⇒ R₂ = 162.45
Coefficient of Range (CR2)=
H-L
H+L
=
913.35-750.90
913.35+750.90
=
162.45
1664.25
=0.097
From the above results we can observe that the prices of the Tata Motors shares are less volatile as compared to the prices of Reliance shares.