The mean and S.D. of marks obtained by 50 students of a class in three subjects mathematics , physics and chemistry are given below?

which of the three subjects 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 three subjects , mathematics ,Physics and Chemistry are given below : Which of the three subject 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. three subjects, Mathematics, Physics and Chemistry are given below. Which of three subjects shows the highest variability, in marks and which shows the lowest?

The mean and standard deviation of marks obtained by 50 students in a class in two subjects , mathematics and accountancy are given below : Which of the subject shows the highest variability in marks? and why?

Marks obtained in mathematics examination are given below:(i)Mean of the marks……..

Consider the following data in respect of marks of 50 students in mathematics and physics. Which subject shows more consistent?

Consider the following data in respect of marks of 50 students in mathematics and physics. Which subject shows more variability?

Mean mark scored by the students of a class is 53. The mean mark of the girls is 55 and the mean mark of the boys is 50. What is the percentage of girls in the class ? a) 60% b) 40% c) 50% d) 45%

The mean and S.D. of a group of 100 observations were found to be 20 and 3 respectively. Later on its was found that three observations were incorrect which were recorded as 21,21 and 18 find the mean S.D. if the incorrect observations were omitted.