NCERT Class 10

The marks obtained by 30 students of Class X of a certain school in a Mathematics paper consisting of 100 marks are presented in table below. Find the mean of the marks obtained by the students. The marks obtained by 30 students of Class X of a certain school in a Mathematics paper consisting of [...]

The following table gives production yield per hectare of wheat of 100 farms of a village. Change the distribution to a more than type distribution, and draw its ogive. and draw its ogive. The following table gives production yield per hectare of wheat of 100 farms of a village. Change the distribution to a more [...]

During the medical check up of 35 students of a class, their weights were recorded as follows: Draw a less than type ogive for the given data. Hence obtain the median weight from the graph and verify the result by using the formula. During the medical check up of 35 students of a class their [...]

The following distribution gives the daily income of 50 workers of a factory. Convert the distribution above to a less than type cumulative frequency distribution and draw its ogive. The following distribution gives the daily income of 50 workers of a factory. Convert the distribution above to a less than type cumulative frequency distribution and [...]

The distribution below gives the weight of 30 students in a class. Find the median weight of students: The distribution below gives the weight of 30 students in a class. Find the median weight of students: October 6, 2020 Category: Chapter 14 - Statistics , Maths , NCERT Class 10 ,

100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in the English alphabets in the surnames was obtained as follows: Determine the median number of letters in the surnames. Find the mean number of letters in the surnames? Also, find the modal size of [...]

The following table gives the distribution of the life time of 400 neon lamps: Find the median life time of a lamp. The following table gives the distribution of the life time of 400 neon lamps: Find the median life time of a lamp. October 6, 2020 Category: Chapter 14 - Statistics , Maths , [...]

The lengths of 40 leaves of a plant are measured correct to the nearest millimetre, and the data obtained is represented in the following table: and the data obtained is represented in the following table: The lengths of 40 leaves of a plant are measured correct to the nearest millimetre October 6, 2020 Category: Chapter [...]

A life insurance agent found the following data for the distribution of ages of 100 policy holders. Calculate the median age, if policies are only given to persons having age 18 years on wards but less than 60 years. A life insurance agent found the following data for the distribution of ages of 100 policy [...]

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 ,