Calculate the standard deviation of the following data: 7...
Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13.
2
4
10
11
Correct answer is A
xx−x(x−x)27−398−249−11100111111224133928
S.D = √∑(x−x)2N
= √∑d2N
= √287
= √4
= 2
Find the 9th term of the arithmetic progression 18, 12, 6, 0, -6 ......... ...
Which of the following is true about parallelogram? ...
Solve for x in the equation; 35(2x - 1) = 14(5x - 3)...
Which of the following is not a factors of 2p2 - 2?...
If p varies inversely as the square of q and p=8 when q=4, find q...
What factor is common to all the expressions x2 - x, 2x2 + x - 1 and x2 - 1?...