Question

A company staff will deliver 5 laptops in a client. What are the values of the random variable x representing the number of non defective laptop if there are 3 defective units. Use D for defective and N for non-defective

Answer 1

x=5

NNNNN

x=4

DNNNN, NDNNN, NNDNN, NNNDN, NNNND

x=3

DDNNN, NDDNN, NNDDN, NNNDD, DNNND, NDNDN, DNNDN, NNDND, DNDNN, NDNND

x=2

NNDDD, DNNDD, DDNND, DDDNN, NDDDN, DNDND, NDDND, DDNDN, NDNDD, DNDDN