Ravi prepares a less-than table for test marks of 50 students. He finds that 'less than 40' has cumulative frequency 25. What does this tell him, and which measure of central tendency is the mark 40 close to?

Question

Accepted Answer

Exactly half the students scored below 40, so 40 is near the median. N/2 = 50/2 = 25, which equals the cumulative frequency at 40, so the median is about 40.

Ravi prepares a less-than table for test marks of 50 students. He finds that 'less than 40' has cumulative frequency 25.
What does this tell him, and which measure of central tendency is the mark 40 close to?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Cumulative Frequency and Ogive practice

Ravi prepares a less-than table for test marks of 50 students. He finds that 'less than 40' has cumulative frequency 25.What does this tell him, and which measure of central tendency is the mark 40 close to?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Cumulative Frequency and Ogive practice

Ravi prepares a less-than table for test marks of 50 students. He finds that 'less than 40' has cumulative frequency 25.
What does this tell him, and which measure of central tendency is the mark 40 close to?