Question Answers

A ray of light enters a rectangular glass slab of refractive index root 3 at an angle of incidence 60. It travels a distance of 5 cm inside the slab and emerges out of the slab. The perpendicular distance The image of an object placed on the principal axis of a concave mirror of focal [...]

If the median of the distribution given below is 28.5, find the values of x and y. find the values of x and y. If the median of the distribution given below is 28.5 October 6, 2020 Category: Chapter 14 - Statistics , Maths , NCERT Class 10 ,

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them. mean and mode of the data and compare them. The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the [...]

A student noted the number of cars passing through a spot on a road for 100 periods each of 3 minutes and summarised it in the table given below. Find the mode of the data : A student noted the number of cars passing through a spot on a road for 100 periods each of [...]

The given distribution shows the number of runs scored by some top batsmen of the world in one day international cricket matches: Find the mode of the data. The given distribution shows the number of runs scored by some top batsmen of the world in one day international cricket matches: Find the mode of the [...]

The following distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mode and mean of this data. Interpret, the two measures. The following distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mode and mean of this data. Interpret the two measures. October 6, 2020 [...]

The following data gives the distribution of total monthly household expenditure of 200 families of a village. find the modal monthly expenditure of the families. Also, find the mean monthly expenditure: find the mean monthly expenditure: The following data gives the distribution of total monthly household expenditure of 200 families of a village. find the [...]

The following data gives the information on the observed lifetimes (in hours) of 225 electrical components: Determine the modal lifetimes of the components. The following data gives the information on the observed lifetimes (in hours) of 225 electrical components: Determine the modal lifetimes of the components. October 6, 2020 Category: Chapter 14 - Statistics , [...]

The following table shows the ages of the patients admitted in a hospital during a year: Find the mode and the mean of the data given above. Compare and interpret the two measures of central tendency. The following table shows the ages of the patients admitted in a hospital during a year: Find the mode [...]

A ray of light travelling in glass (mu = 3/2) is incident on a horizontal glass – air surface at the critical angle theta c. If a thin layer of water (mu = 4/3) is now poured on the glass-air surface, A ray of light travelling in glass (mu = 3/2) is incident on a [...]