Topics
Sets and Relations
Functions
Complex Numbers 33
Sequences and Series
Locus and Straight Line
Determinants
Limits
Continuity
Differentiation
Partition Values
Measures of Dispersion
Skewness
Bivariate Frequency Distribution and Chi Square Statistic
Correlation
Permutations and Combinations
- Introduction of Permutations and Combinations
- Fundamental Principles of Counting
- Concept of Addition Principle
- Concept of Multiplication Principle
- Concept of Factorial Function
- Permutations
- Permutations When All Objects Are Distinct
- Permutations When Repetitions Are Allowed
- Permutations When All Objects Are Not Distinct
- Circular Permutations
- Properties of Permutations
- Combination
- Properties of Combinations
Probability
Linear Inequations
Commercial Mathematics
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Related QuestionsVIEW ALL [17]
The distribution of a sample of students appearing for a C.A. examination is:
| Marks | 0 – 100 | 100 – 200 | 200 – 300 | 300 – 400 | 400 – 500 | 500 – 600 |
| No. of students | 130 | 150 | 190 | 220 | 280 | 130 |
Help C.A. institute to decide cut-off marks for qualifying an examination when 3% of students pass the examination.
Calculate Q1, D6, and P15 for the following data:
| Mid value | 25 | 75 | 125 | 175 | 225 | 275 |
| Frequency | 10 | 70 | 80 | 100 | 150 | 90 |
Weekly Wages for group of 100 persons are given below:
| Wages (in ₹) |
0 – 500 | 500 – 1000 | 1000 – 1500 | 1500 – 2000 | 2000 – 2500 |
| No. of persons | 7 | ? | 25 | 30 | ? |
D3 for this group is ₹1100 Calculate the missing frequencies.
From the following data calculate the rent of 15th, 65th and 92nd house.
| House rent (in ₹) | 11000 | 12000 | 13000 | 15000 | 14000 | 16000 | 17000 | 18000 |
| No. of houses | 25 | 17 | 13 | 14 | 15 | 8 | 6 | 2 |
Find Q1, D6, and P78 for the following data:
| C.I. | 8 – 8.95 | 9 – 9.95 | 10 – 10.95 | 11 – 11.95 | 12 – 12.95 |
| f | 5 | 10 | 20 | 10 | 5 |
Calculate 2nd decide and 65th percentile for the following:
| x | 80 | 100 | 120 | 145 | 200 | 280 | 310 | 380 | 400 | 410 |
| f | 15 | 18 | 25 | 27 | 40 | 25 | 19 | 16 | 8 | 7 |
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