No student devices needed. Know more
10 questions
This is not one of the measures of central tendency.
Mean
O-give curve
Median
Mode
While computing Mean of grouped data, we assume that the frequencies are
Evenly distributed over all the classes
Centred at the class marks of the classes
Centred at the upper limits of the classes
Centred at the lower limits of the classes
The abscissa of the point if intersection of the less than type and more than type O-give curves of a grouped data gives its
Mean
Median
Mode
All of these
For the following distribution, the sum of lower limits of the median class and modal class is
15
25
30
35
Consider the following frequency distribution table,
The upper limit of the median class is
7
17.5
18
18.5
For the following distribution,
The modal class is..
10-20
20-30
30-40
40-50
Calculate the mean of the following data
5.5
15
7
10
Calculate the mean of the scores of 20 students in a mathematics test35
30
20
35
40
The method to calculate mean using this formula is called..
Direct method
Assumed mean method
Step-deviation method
Alternate method
This is the formula to calculate
Average/mean
Mode
Median
Deviation
Explore all questions with a free account