A population consists of four member 1,2,3,4.considered all possible random sample of size n=2 which can be drawn without replacement from this population hence compute the population mean ,variance and standard deviation​

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present