The mid-value of a class interval is 42. If the class size is 10, then the upper and lower limits of the class are:(a) 47 and 37(b) 37 and 47(c) 37.5 and 47.5(d) 47.5 and 37.5

The mid-value of a class interval is 42. If the class size is 10, then

1.	The mid-value of a class interval is 42. If the class size is 10, then the upper and lower limits of the class are:(a) 47 and 37(b) 37 and 47(c) 37.5 and 47.5(d) 47.5 and 37.5
Answer» The mid-value of a class interval is 42. If the class size is 10, then the upper and lower limits of the class are: (a) 47 and 37 (b) 37 and 47 (c) 37.5 and 47.5 (d) 47.5 and 37.5