Methods of communication | class 10 | IT subject

Communication system

Name the two basic modes of communication. Which one is used for telephonic communication?

Climax communities

Climax communities

A: Optical communication system is more economical than other system of communications. R: The information carrying capacity of a communication system is directly proportional to its band width.

The marks obtained by 30 students in a class assessment of 5 subjects is given below : Calculate the mean, median and mode of the above distribution.

Optical fibre. communication is generally preferred over general communication system because

The width of each of five continuous classes in a frequency distribution is 5 and the lower class limit of the lowest class is 10. The upper class limit of the highest class is

The mean and standard deviation of marks obtained by 50 students of a class in three subjects, Mathematics, Physics and Chemistry are given below: Which of the three subjects shows the highest variability in marks and which shows the lowest?

The mean and standard deviation of marks obtained by 50 students of a class in there subjects, mathematics, physics and chemistry are given below: Subject Mathematics Physics Chemistry Mean 42 32 40.9 Standard Deviation 12 15 20 Which of the three subjects shows the highest variability in marks and which shows the lowest?