Question

помогите плиииз, не могу никак(((

Answer 1

a)32,15; 31,28; 29,16; 34,54
(32.15+31.28+29.16+34.54)/4=31.7825≈31.78
б)3,234; 3,452; 4,185; 2,892;
(3.234+3.452+4.185+2.892)/4=3.44075≈3.440