Mathematics
Consider the following class intervals of a grouped data :
| Class interval | 10-25 | 25-40 | ------- | 55-70 |
|---|
Statement 1: Class marks of the 3rd class intervals is 46.5.
Statement 2: If the class mark of 2nd interval is 77.5, the interval is 60 - 85.
Which of the following options is correct?
Both the statements are true.
Both the statements are false.
Statement 1 is true, and statement 2 is false.
Statement 1 is false, and statement 2 is true.
Related Questions
In a bar-graph, if the widths of all the bars are kept same, their heights are proportional to their :
class-size
class-mark
class-limits
frequency
Assertion (A) : Class size of the following class intervals is 10.
1 - 10, 11 - 20, 21 - 30, etc.
Reason (R) : The difference between the upper limit and lower limit is the class size.
Both A and R are correct, and R is the correct explanation for A.
Both A and R are correct, and R is not the correct explanation for A.
A is true, but R is false.
A is false, but R is true.