Question

3) Find mean, mean deviation standard deviation.
20-30
30-L
4o-50
23​

Answer 1

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.