Find the mode of the following distribution of marks obtained by the students in an examination:
Given the mean of the above distribution is 53, using empirical relationship estimate the value of its median.
Mode = 68
So, the mode marks is 68.
Empirical relationship between the three measures of central tendencies is:
3 Median = Mode + 2 Mean
3 Median = 68 + 2 × 53
Median = 58 marks
The following frequency distribution shows the distance (in metres) thrown by 68 students in a Javelin throw competition.
Draw a less than type Ogive for the given data and find the median distance thrown using this curve.
Median distance is value of x that corresponds to
Cumulative frequency N/2 = 68/2 = 34
Therefore, Median distance = 36 m