Question Text
Question 1 :
<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 2 :
<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 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c11273b230584979a6c.PNG' />
The above data gives the distribution of total monthly household expenditure of 200 families of a village. Find the mean monthly expenditure.
Question 4 :
<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 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c05273b230584979a5e.PNG' />
The above table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate.
Question 6 :
<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 7 :
<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 8 :
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 9 :
For finding the median of ungrouped data, we first arrange the data values of the observations in ascending order. TRUE OR FALSE?
Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c16273b230584979a72.PNG' />
The above given frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the mode.