Question 1 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c0f273b230584979a6a.PNG' />
The above 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.
Question 3 :
The class whose cumulative frequency is greater than (and nearest to) $\frac{n}{2}$ is called median class. TRUE OR FALSE ? (n is number of observations)
Question 4 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c10273b230584979a6b.PNG' />
The above distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mean of this data.
Question 5 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19bfd273b230584979a55.PNG' />
The table above gives the percentage distribution of female teachers in the primary schools of rural areas of various states and union territories (U.T.) of India. Find the mean percentage of female teachers.
Question 6 : <img style='object-fit:contain' src='61b19ae3273b230584979944' />
If median of the distribution given below is 28.5, then find the values of x and y.
Question 7 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c07273b230584979a60.PNG' />
The table above shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method
Question 8 :
For finding the median of ungrouped data, we first arrange the data values of the observations in ascending order. TRUE OR FALSE?
Question 9 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c1b273b230584979a78.PNG' />
The lengths of 40 leaves of a plant are measured correct to the nearest millimetre, and the data obtained is represented in the above table. Find the median length of the leaves
Question 10 :
The wickets taken by a bowler in 10 cricket matches are as follows: 2, 6 ,4 ,5, 0, 2, 1, 3, 2, 3. Find the mode of the data.
Question 11 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19ab8273b23058497993e.PNG' />
The above given distribution shows the number of runs scored by some top batsmen of the world in one-day inetrnational cricket matches. Find the mode.
Question 12 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19bfb273b230584979a52.PNG' />
The distribution above shows the number of wickets taken by bowlers in one-day cricket matches. Find the mean number of wickets.
Question 13 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c04273b230584979a5d.PNG' />
Consider the above distribution of daily wages of 50 workers of a factory. Find the mean daily wages of the workers of the factory by using an appropriate method.
Question 14 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c13273b230584979a6e.PNG' />
The above distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mode of this data.
Question 15 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c06273b230584979a5f.PNG' />
In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The data was the distribution of mangoes according to the number of boxes. Find the mean number of mangoes kept in a packing box.
Question 16 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c1a273b230584979a76.PNG' />
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 given above. Determine the mode number of letters in the surnames.
Question 17 : <img style='object-fit:contain' src='61b19a74273b230584979936' />
The table above shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method.
Question 18 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c02273b230584979a5a.PNG' />
A survey regarding the heights (in cm) of 51 girls of Class X of a school was conducted and the above data was obtained. Find the median height.
Question 20 : <img style='object-fit:contain' src='61b19a6b273b230584979935' />
Thirty women were examined in a hospital by a doctor and the number of heart beats per minute were recorded and summarised as above. Find the mean heart beats per minute for these women, choosing a suitable method.
Question 21 : <img style='object-fit:contain' src='61b19a9e273b23058497993b' />
The above table shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency.
Question 22 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c1c273b230584979a79.PNG' />
If the median of the distribution given above is 28.5, find the values of x and y.
Question 23 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c18273b230584979a74.PNG' />
The distribution below gives the weights of 30 students of a class. Find the median weight of the students.
Question 24 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19bfc273b230584979a54.PNG' />
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 above. Find the mean of the marks obtained by the students
Question 25 : <img style='object-fit:contain' src='61b19ab9273b23058497993f' />
The above data gives the infomation on the observed lifetimes (in hours) of 225 electrical bulbs. Determine the modal lifetime of the components.
Question 26 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c0b273b230584979a65.PNG' />
A class teacher has the following absentee record of 40 students of a class for the whole term. Find the mean number of days a student was absent.
Question 27 : <img style='object-fit:contain' src='61b19b06273b230584979948' />
The distribution given above gives the weights of 30 students of a class. Find the median weights of the students.
Question 28 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19bfe273b230584979a56.PNG' />
The marks distribution of 30 students in a mathematics examination are given above. Find the mode of this data.
Question 29 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c0f273b230584979a69.PNG' />
The above table shows the ages of the patients admitted in a hospital during a year. Find the mean of the data given above.
Question 30 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c14273b230584979a70.PNG' />
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 given above. Determine the mean number of letters in the surnames.
