Sadhana Bhadoriya

Ex – 13.1 Que No. 6 Q.6) The table below shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method. Solution:-

Ex – 13.1 Que No. 5 Q.5) In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes. Find the mean number of mangoes kept in a packing box. Which method of finding

Ex – 13.1 Que No. 4 Q.4) Thirty women were examined in a hospital by a doctor and the number of heartbeats perminute were recorded and summarised as follows. Find the mean heartbeats per minutefor these women, choosing a suitable method. Solution:-

Ex – 13.1 Que No. 3 Q.3) The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs 18. Find the missing frequency f. Solution:-

Ex – 13.1 Que No. 2 Q.2) Consider the following distribution of daily wages of 50 workers of a factory. Find the mean daily wages of the workers of the factory by using an appropriate method. Solution:-

Ex – 13.1 Que No. 1 Q.1) A 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. Which method did you use