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

(a) upper limits of the classes

(b) lower limits of the classes

(c) class marks of the class

(d) upper limits of preceding classes

**Solution:**

(c) class marks of the class is correct

#### The median of the data 78, 56, 22, 34, 45, 54, 39, 68, 54, 84 is

**Solution:**

54 is correct

#### In a data, 10 numbers are arranged in ascending order. If the 8th entry is increased by…………..

**Solution:**

0 is correct

**More Solutions:**

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