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Percentage of marks obtained by a student in the monthly unit tests are given below : (4) Unit test I II III IV V %of marks obtained 58 64 76 62 85 Find the probability that the student gets : (i) at least 60% marks (ii) marks between 70% a?
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Percentage of marks obtained by a student in the monthly unit tests ar...
Probability of a student getting marks in unit tests
(i) Probability of getting at least 60% marks:
To find the probability of a student getting at least 60% marks, we need to calculate the number of unit tests in which the student scored 60% or more and then divide it by the total number of unit tests.
In this case, the student scored 60% or more in 4 out of 5 unit tests. Therefore, the probability of the student getting at least 60% marks is 4/5 or 0.8.
(ii) Probability of getting marks between 70% and 80%:
To find the probability of a student getting marks between 70% and 80%, we need to calculate the number of unit tests in which the student scored between 70% and 80% and then divide it by the total number of unit tests.
In this case, the student scored between 70% and 80% in 1 out of 5 unit tests. Therefore, the probability of the student getting marks between 70% and 80% is 1/5 or 0.2.
Therefore, the probability of a student getting at least 60% marks is 0.8 and the probability of getting marks between 70% and 80% is 0.2.
(i) Probability of getting at least 60% marks:
To find the probability of a student getting at least 60% marks, we need to calculate the number of unit tests in which the student scored 60% or more and then divide it by the total number of unit tests.
In this case, the student scored 60% or more in 4 out of 5 unit tests. Therefore, the probability of the student getting at least 60% marks is 4/5 or 0.8.
(ii) Probability of getting marks between 70% and 80%:
To find the probability of a student getting marks between 70% and 80%, we need to calculate the number of unit tests in which the student scored between 70% and 80% and then divide it by the total number of unit tests.
In this case, the student scored between 70% and 80% in 1 out of 5 unit tests. Therefore, the probability of the student getting marks between 70% and 80% is 1/5 or 0.2.
Therefore, the probability of a student getting at least 60% marks is 0.8 and the probability of getting marks between 70% and 80% is 0.2.
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Percentage of marks obtained by a student in the monthly unit tests are given below : (4) Unit test I II III IV V %of marks obtained 58 64 76 62 85 Find the probability that the student gets : (i) at least 60% marks (ii) marks between 70% a?
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Percentage of marks obtained by a student in the monthly unit tests are given below : (4) Unit test I II III IV V %of marks obtained 58 64 76 62 85 Find the probability that the student gets : (i) at least 60% marks (ii) marks between 70% a? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Percentage of marks obtained by a student in the monthly unit tests are given below : (4) Unit test I II III IV V %of marks obtained 58 64 76 62 85 Find the probability that the student gets : (i) at least 60% marks (ii) marks between 70% a? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Percentage of marks obtained by a student in the monthly unit tests are given below : (4) Unit test I II III IV V %of marks obtained 58 64 76 62 85 Find the probability that the student gets : (i) at least 60% marks (ii) marks between 70% a?.
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