In an examination, the distribution of marks obtained by 30 students is given in the following table: Marks: 10–25 | 25–40 | 40–55 | 55–70 | 70–85 | 85–100 No. of Students: 2 | 3 | 7 | 6 | 6 | 6 The mode of the data is

Seventeen candidates appeared in an examination. The marks of the candidates who failed in the examination are 10, 9, 6, 7, 8, 8, 7, 5, 4, 6. The median of marks of all seventeen candidates is

Consider the following statements : 1. n³ - n is divisible by 6 2. n⁵ - n is divisible by 5 3. n⁵ - 5n³ + 4n is divisible by 120 Which of the statements given above are correct ?

The marks of 60 students of a college are shown by the following histogram. How many students have marks between 10 and 20? (Figure: histogram — marks 0-5: 5, 5-10: 10, 10-15: 20, 15-20: 15, 20-25: 1…

The median of the following distribution is 28.5, the values of x and y are respectively Class Interval: 0–10 | 10–20 | 20–30 | 30–40 | 40–50 | 50–60 Frequency: 5 | x | 20 | 15 | y | 5 where the tota…

Which one of the following is NOT a graphical presentation of a frequency distribution?