Question

please solve these problems with full process plzzzzzz
Number 1,2,3 full

Answer 1

1)a.first five natural numbers are 1,2,3,4,5.
mean=1+2+3+4+5/5
=15/5
=3
B)first seven whole numbers are 0,1,2,3,4,5,6
mean=0+1+2+3+4+5+6/7
=21/7
=3
C)first four prime numbers are 2,3,5,7
mean=2+3+5+7/4
=17/4
D)mean of 7,19,31,43,70 is 7+19+31+43+70/5
=170/5
=34


2)80+85+90+71+60+100/6
=486/6
=81


3)138+144+155+142+167+172/6
=918/6
=153