44: Match rivers labelled A, B, C and D on the given map with their names given in the list and select the correct answer using the codes given below the list:
List I
1. St. Lawrence
2. Orinoco
3. Mackenzie
4. Amazon
5. Yukon
Codes:
(a) A-4, B-3, C-2, D-1
(b) A-5, B-3, C-1, D-2
(c) A-5, B-4, C-1, D-3
(d) A-3, B-1, C-4, D-2
45: When the frequency distribution is normal
(a) median, mode and mean are all different from one another
(b) mean, mode and median are identical
(c) mean is greater than mode
(d) mean is greater than median