- Vaishnavi SitaramanThirty women were examined in a hospital by a doctor and the number of heart-beats per minute were recorded and summarized as follows. Find the mean heart-beats per minute for these women, choosing a suitable method.
- Smriti SA survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house.
- Rishabh PatelThe following observations have been arranged in ascending order. If the median of the data is 63, find the value of x.
29, 32, 48, 50, x, x + 2, 72, 78, 84, 95
- Jayant SharmaThe following table given below, gives the distribution of students of two sections according to the mark obtained by them :
Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the two polyg