Page 87 - Mathematics Class - X

Assertion-Reason Based Questions
Assertion-Reason Based Questions
Directions for Questions 1 to 3: In each of the questions given below, there are two statements marked as
Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false. (d) A is false but R is true.
Q. 1. Assertion (A) : The probability of an event is always exists between 0 and 1.
Reason (R) : Probability is defined as the ratio of the number of favourable outcomes to the total
number of possible outcomes.
Q. 2. Assertion (A) : Mode is always one of the numbers in data.

Reason (R) : Mode is always greater than mean in a data.
Q. 3. Assertion (A) : The middle most observation of data is called the median.

Reason (R) : Median divides the data into two equal parts.

Crossword Puzzles
Crossword Puzzles
Complete the following crossword puzzles.

1. Down

1. Probability can not be ___________ than one.

3. Sum of the probabilities of all outcomes in an experiment is ___________.

5. An event that can not be easily predicted is called a ___________ event.

Across
2. 3.
2. Probability of an impossible events is ___________ .

4. 5. 4. The probability of ___________ events is 1.

Answers

Case-Study Based Questions: 1. (c) 2. (b) 3. (b) 4. (b)

Assertion-Reason Based Questions: 1. (b) 2. (c) 3. (a)
Crossword: Down: 1. Greater 3. one 5. Random
Across: 2. zero 4. sure

85