Mean, median, mode, frequency distribution.
Study notes are still being prepared.
Don't wait — Shishya can teach you this topic right now, on demand.
Ask Shishya to teach this →Shishya is your personal tutor for this topic. Pick a starter or open a free chat.
Q1 · Statistics · EASY
The mean of 5 numbers is 20. If one number 16 is removed, what is the mean of the remaining 4 numbers?
Q2 · Statistics · EASY
Find the median of the following data: 15, 22, 18, 30, 25, 20, 28
Q3 · Statistics · MEDIUM
The marks obtained by 10 students are: 35, 42, 35, 50, 35, 48, 42, 35, 50, 45. What is the mode of this data?
Q4 · Statistics · MEDIUM
The frequency distribution of marks of 50 students is given below: Marks: 10-20, 20-30, 30-40, 40-50 Frequency: 8, 15, 20, 7 What is the modal class?
Q5 · Statistics · HARD
The mean of 20 observations is 45. Later it was found that two observations were wrongly recorded as 30 and 40 instead of 50 and 60. What is the correct mean?