Question
Mathematics Question on Statistics
In an examination marks obtain by students in physics, maths and statistics denoted by x,y, and z are normally distributed with means 50,52 and 48 respectively and standard deviation 13,12,16, rape. the distribution of (x+y+x) is_____
A
N(350,53)
B
N(55,350)
C
N(150,625)
D
N(625,150)
Answer
N(150,625)
Explanation
Solution
The correct option is (C): N(150,625)