Advertisements
Advertisements
प्रश्न
Find the mean and mode of 6, 11, 13, 12, 4, 2
Advertisements
उत्तर
Arranging is ascending order: 2, 4, 6, 11, 12, 13
Mean = `"Sum of all observations"/"Number of observations"`
= `(2 + 4 + 6 + 11 + 12 + 13)/6`
= `48/6`
Mean = 8
All observations occur only once and so there is no mode for this data.
APPEARS IN
संबंधित प्रश्न
Mean of 100 observations is 40. The 9th observation is 30. If this is replaced by 70 keeping all other observations same, find the new mean.
Find the common difference of the A.P 3, 5, 7, ..........
Ashish studies for 4 hours, 5 hours, and 3 hours respectively on three consecutive days. How many hours does he study daily on average?
The mean of the square of first 11 natural numbers is
The mean of a set of numbers is `bar(X)`. If each number is multiplied by z, the mean is
The average of the marks 2, 9, 5, 4, 4, 8, 10 is ____________
The mean of first fifteen even numbers is ____________
Mean of the observations can be lesser than each of the observations.
Mean can never be a fraction.
The mean age of 25 teachers in a school is 40 years. A teacher retires at the age of 60 years and a new teacher is appointed in his place. If the mean age of the teachers in this school now is 39 years, then the age (in years) of the newly appointed teacher is ______.
