STA301 Past Mid Term Paper

STA301 Past Mid Term Paper

Question#1

           What is sample point explain with an example (02 Marks)
Questio#2

           find the Harmonic Mean of the following value
12, 22,33,44,55, (02 Marks)
Question #3

          what is the relasnship between the first moment about any arbitrary value (A) and the means? (02 Marks)
Questing #4

              If mean of a distribution is 25 and Stranded deviation is 5, find out the limits by applying chybychev’s inequality for K =2 (03 Marks)
Question #5

          Given P (A) = 0.60 P (B) = 0.40 P (A B) = 0.24
FIND P (ABU) (03Marks)
Question #6

           for the following data calculate + ks, K=2 also interrupt these limits
25, 31, 29,24,32,23,28,25,23 (05 Marks)
Question #7
          A random variable x has the following propbality distribution
X p(x)
-2 0.1
-1 K?
0 0.2
1 2k
2 0.3
3 3K
Find the value of K