Question

28. An industry consists of six firms with annual sales of $300, $500, $400, $700, $600, and $600, respectively. What is the industry's Ca? A. 0.58. B. 0.62 C. 0.74. D. 0.77.

show me details please i dont understand how its 1,779

question 29 not 28 please

Answer 1

28.

Industry's C4

=(700+600+600+500)/(700+600+600+500+400+300)

=0.77

29.

Total sales=700+600+600+500+400+300=3100

HHI=(700/3100*100)^2+(600/3100*100)^2+(600/3100*100)^2+(500/3100*100)^2+(400/3100*100)^2+(300/3100*100)^2

=1779

the above will be answers..