3 If 90% of the population is right-handed, how many people in a group of 200 would you expect to be right-handed? a 180 b 90 c 20 d 18​

Correct answer is option c 20

a monopolistically competitive market can never achieve productive or allocative efficiency. ... Because monopolistic firms set prices higher than marginal costs, consumer surplus is significantly less than it would be in a perfectly competitive market.