The first chart shows that the data is approximately normally distributed. The mean, mode and median are very close to being equal. The data show very little skewness. The mean is 166.9, standard deviation is 76.1 with 24 cases.
The boundary between contagious and non-contagious infectious diseases is not perfectly drawn, as illustrated classically by tuberculosis, which is clearly transmissible from person to person, but was not classically considered a contagious disease.he non-contagious category of infections usually require a special mode of transmission between persons or hosts. These include need for intermediate vector species (mosquitoes that cause malaria) or by non-casual transfer of bodily fluid (such as transfusions, needle sharing or sexual contact).
Communicable diseases are transmitted from one source to another by infectious bacteria or viral organisms. Contagious diseases are very communicable, spreading rapidly from one person to another via contact or close proximity.Some germs are communicable and/or contagious, while others are not, i.e. food poisoning.Contagious, communicable or noncommunicable infectious diseases, posing a health risk, have always existed.otorious childhood contagious diseases commonly discovered running around the playground include: 1  rubella. 2  roseola. 3  scabies. 4  measles. 5  pink eye. 6  ringworm. 7  chickenpox. 8  scarlet fever. 9  fifth disease. 10  hand-foot-and-mouth disease.