A 4 meter long and 5 meter long room should be equipped with skirting boards. The door is 1 meter wide. a) How many meters of skirting boards are needed? b) How much do the strips cost if you have to pay 6 € for a running meter​

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол