The following data gives the information on the observed lifetimes (in hours) of 225 electrical components: Determine the modal lifetimes of the components.

The following data gives the information on the observed lifexx (in hours) of 225 electrical components: Determine the modal lifexx of the components.

Name the electrical components having the following symbols :

The following information gives the monthly salaries of 100 employees . Find the mode of the data .

Give the names and symbols for any two common electrical components.

The following data gives the distribution of total monthly household expenditure of 200 families of a village.Find the modal monthly expenditure of the families.Also,find the mean monthly expenditure:

The following table gives the frequency distribution of life lergth in hours of 100 electric bulbs having median life 20 hours : What is the missing frequency x ?

The following table gives the frequency distribution of life lergth in hours of 100 electric bulbs having median life 20 hours : What is the missing frequency y ?

The following table gives information about the circulation of newspapers (dailies) in a town in five languages. Prepare a pictograph of the above data, using a symbol of your choice, each representing 1000 newspapers.