निम्नलिखित डेटा का मोड खोजें:\nवर्ग आवृत्ति \n0-20 15\n20-40 6 \n40-60 18\n60-80 10\n\...

Find the mean of the following frequency distribution: Classes: 0-20 20-40 40-60 60-80 80-100 Frequency: 15 18 21 29 17

The value of sin20^@ sin40^@ sin60^@ sin80^@

The following table gives the marks scored by 100 students in an entrance examination. Marks:, 0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 No. of Students (Frequency):, 4, 10, 16, 22, 20, 18, 8, 2

Determine the modal class for the frequency distribution given below is: {:("Class interval",0-20,20-40,40-60,60-80,80-100),("Number of workers",15,18,21,29,17):}

Range of data: 20,40,30,60,80,100,10,70 is:

Range of data : 20,40,30,60,80,100,10,70 is

Find the mean of the data given in the following table. {:("Class",0-20,20-40,40-60,60-80,80-100),("Frequency"," "6," "4," "5," "7," "3):}

If C(20,n+2)=C(20,n-2) then n=

Find sin20^(@)sin40^(@)sin60^(@)sin80^(@) .