Test Details

Statistics and Probability - NCERT

Feb 17, 8:00 PM

50 minutes

Feb 17, 8:50 PM

50.0 marks

MCQ

25 questions

rahul panday

Class Details

Math

Science

Class -10

Math

Science

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Question Text

Question 2 :
For the following distribution: <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b70273b2305849799a3.jpg' /> The modal class is

Question 3 :
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 4 :
In any situation that has only two possible outcomes, each outcome will have probability $\frac{1}{2}$.

Question 5 :
The probability expressed as a percentage of a particular occurrence can never be

Question 6 :
Which of the following cannot be the probability of an event?

Question 7 :
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 9 :
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 10 :
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 11 :
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 12 :
Consider the following distribution : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19b72273b2305849799a6.jpg' /> The frequency of the class 30-40 is

Question 13 :
The probability of getting a bad egg in a lot of 400 is 0.035. The number of bad eggs in the lot is

Question 14 :
An event is very unlikely to happen. Its probability is closest to

Question 15 :
Which of the the following can be the probability of an event?

Question 16 :
When a die is thrown, the probability of getting an odd number less than 3 is

Question 17 :
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 18 :
A card is selected from a deck of 52 cards. The probability of its being a red face card is

Question 19 :
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 20 :
If the probability of an event is p, the probability of its complementary event will be

Question 21 :
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 22 :
In the formula, $\bar{x} = a + h\frac{f_i * u_i}{f_i}$, for finding the mean of grouped frequency distribution, $u_i =$

Question 23 :
A card is selected at random from a well shuffled deck of 52 playing cards. The probability of its being a face card is

Question 24 :
A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is

Question 25 :
A card is drawn from a deck of 52 cards. The event E is that card is not an ace of hearts. The number of outcomes favourable to E is

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