Consider the following statements :

(a) Tele-communication satelltites are mostly Geostationary satellites usually placed at an altitudes of more than 30,000 km.

(b) Resource satellites are sun-synchrous usually placed at an altitude of 300 -1000n km.

• (a) only.

• Both (a) and (b)

• (b) only.

• Neither (a) and (b)

72.

Which one of the following sensors is an active remote sensing sensor ?

• Photo Camera

• Multiframe Camera

• Multiband Camera

• Radar

Consider the following figures X and Y :

• Figure X is small-scale map and distance between A and B is 40 metres.

• Figure Y is large-scale map and distance between C and D is km.

• Figure X is large scale map and figure Y is small-scale and distance between A and B and C and D are 40 metres and 20 km respectively.

• Figure X is large scale and Figure Y is small-scale . The ground distance between A and B and C and D.

ASSERTION (A) : Dot map is especially useful when the values are disturbed unevenly and sporadically.

REASON (R) : Smaller the statistical unit , more accurate is the Dot Map.

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is true , but (R) is false.

• (A) is false , but (R) is true.

Which one of the following terms is correct for calculation of Skewness C0-efficient (ß_{1) ?}