Step-by-step explanation:
a) mean =0+0+0+56+64+65+78+78+79+79+84+86+97+100
=866/total amount of number
=866/14
=61.86
b) median the middle number (put the number smallest to biggest)(if there are two numbers in the middle add them then divide by 2)
=78+78/2
=78
c)mode= the most common number (can be more than one)
=0
