Question 1 :
Consider the following frequency distribution : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b70273b2305849799a2.PNG' /> The upper limit of the median class is

Question 2 :
The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its

Question 3 :
Consider the following frequency distribution of the heights of 60 students of a class : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b8e273b2305849799c9.PNG' /> The sum of the lower limit of the modal class and upper limit of the median class is?

Question 4 :
In the following distribution : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b8e273b2305849799c8.PNG' /> The number of families having income range (in Rs) 16000 – 19000 is

Question 5 :
Construction of a cumulative frequency table is useful in determining the

Question 6 :
The times, in seconds, taken by 150 atheletes to run a 110 m hurdle race are tabulated below : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b71273b2305849799a4.jpg' /> The number of atheletes who completed the race in less then 14.6 seconds is :

Question 7 :
State True or False: To find the mean of grouped data, it is assumed that the frequency of each class interval is centred around its mid-point.

Question 8 :
If n is the total number of observations, locate the class whose cumulative frequency is greater than (and nearest to) $\frac{n}{2}$.Is it TRUE or FALSE that, this class is called the median class.

Question 9 :
While computing mean of grouped data, we assume that the frequencies are

Question 10 :
In the formula $\bar{x} = a + \frac{f_i d_i}{f_i}$ for finding the mean of grouped data $d_i$’s are deviations from a of

Question 11 :
The probability expressed as a percentage of a particular occurrence can never be

Question 12 :
Consider the data: <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b72273b2305849799a5.jpg' /> The difference of the upper limit of the median class and the lower limit of the modal class is

Question 14 :
For the following distribution : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b6f273b2305849799a1.PNG' /> The sum of lower limits of the median class and modal class is

Question 15 :
State True or False. In a grouped frequency distribution, it is not possible to determine the mode by looking at the frequencies. To find the mode of grouped data, locate the class with the maximum frequency. This class is known as the modal class. The mode of the data is a value inside the modal class.