Question

john scored the marks in her exam as 49 75 60 78 70 78 find the mean , the median and the mode ​

Answer 1

done Dan done easy peasy it's in half if you know the formulas

Answer 2

For mean,
sigmaFIXI = 49+75+60+78+70+78
= 410
sigmaFI = 6

Mean = sigmaFIXI / sigmaFI
= 410/6 = 68.34

For mode,
= 78

For median,
= (n/2)th obs. + (n/2+1)th obs. ÷2
= (6/2) + (6/2+1) ÷2
= (3)rd obs. + (4)th obs. ÷2
=60 + 78 ÷2
= 138÷2
=69