Statistics Test...

The class mark of the class 90-120 is :

The range of the data :

25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 is

In a frequency distribution, the mid value of a class is 10 and the width of the class is 6. The lower limit of the class is :

The width of each of five continuous classes in a frequency distribution is 5 and the lower class-limit of the lowest class is 10. The upper class-limit of the highest class is:

The class marks of a frequency distribution are given as follows :

15, 20, 25, ...

The class corresponding to the class mark 20 is

In the class intervals 10-20, 20-30, the number 20 is included in :

A grouped frequency table with class intervals of equal sizes using 250-270 (270 not included in this interval) as one of the class interval is constructed for the following data :

268, 220, 368, 258, 242, 310, 272, 342,

310, 290, 300, 320, 319, 304, 402, 318,

406, 292, 354, 278, 210, 240, 330, 316,

406, 215, 258, 236.

The frequency of the class 310-330 is:

The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is :

If each observation of the data is increased by 5, then their mean

The mean of 25 observations is 36. Out of these observations if the mean of first 13 observations is 32 and that of the last 13 observations is 40, the 13th observation is :

The median of the data

78, 56, 22, 34, 45, 54, 39, 68, 54, 84 is

For drawing a frequency polygon of a continous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abcissae are respectively :

Mode of the data

15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17, 15 is

The median of the following data:

36, 46, 32, 42, 33, 52, 50, 48, 56, 60, 53, 95, 75, 80, 70 is.

In a frequency distribution, the mid value of a class is 15 the width of the class is 4. The lower limit of the class is _______

The mean of the first eight natural numbers is 

What are the groups into which large data is condensed called?

Find the median of the first ten prime numbers.

In a school 90 boys and 30 girls appeared for a public examination. The mean marks of boys was found to be 45% whereas the mean marks of girls was 70%. What is the average marks % of the school?

What is a graph drawn with the midpoints of the top sides of the rectangles forming the histogram of a frequency distribution called?