If the upper and the lower class limits of a class interval are 15 and 20, then the class-interval is
14 - 20
15 - 21
16 - 19
15 - 20
Fill in the blanks : (i) Lower class limit of 15-18 is ___ . (ii) Upper class limit of 24-30 is ___. (iii) Upper limit of 5-12.5 is ___. (iv) If the upper and the lower limits of a class interval are 16 and 10; the class interval is ___. (v) If the lower and the upper limits of a class interval are 7.5 and 12.5; the class interval is ___.
Question 46
The sixth class interval for a grouped data whose first two class intervals are 10-15 and 15-20 is ___
If the class interval are 10-19,20-29,30-39,....., then the upper limit of the first class interval will be