Answer:
0.288
0.308
Explanation:
Given :
Mining sector = 45
Financial sector = 72
IT sector = 32
Production sector = 101
Total number of companies :
(45 + 72 + 32 + 101) = 250
A.)
Probability that a randomly selected company is in the financial sector
Recall :
Probability = required outcome / Total possible outcomes
P(company = financial) = (number of companies in financial sector / total number of companies)
P(company = financial) = 72 / 250 = 0.288
B.)
Company is either a mining or IT company :
P(company = Mining or IT) = (number of mining + number of IT Companies) / total number of companies
P(company = Mining or IT) = (45 + 32) / 250 = 77 / 250 = 0.308
