Answer to Question #61626 in Statistics and Probability for muhammad umar

Question

1) The mean and the range of the sets of numbers 1.20, 1.00, 0.90, 1.40, 0.80, 0.80, 1.20 and 1.10 are m and r respectively. Find m - r.
a)1.69
b)0.45
c)1.67
d)1.16
2) Seven Matrons assembled for a meeting, shake hands with one another. How many handshakes take place … … … … … ….?
a)394
b)5040
c)124
d)490
3) What is the evaluation of 5! ?
a)120
b)140
c)110
d)112
4) If four coins are flipped in succession, then the number of possible outcomes is … … … … ….
a)8
b)12
c)16
d)14