EASY
10th Tamil Nadu Board
IMPORTANT
Earn 100

What is the difference between the arithmetic mean and average?

Important Questions on Statistics And Probability

HARD
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Thinking Corner>Q 1
The mean of n observations is x, if first term is increased by 1 second term is increased by 2 and so on. What will be the new mean?
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Progress Check>Q 1
The sum of all the observations divided by number of observations is _____. (mean/median/mode)
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Progress Check>Q 2
If the sum of 10 data values is 265 then their mean is_____.
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Progress Check>Q 3
If the sum and mean of a data are 407 and 11 respectively, then the number of observations in the data are _____.
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Progress Check>Q 1
The range of first 10 prime numbers is
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Thinking Corner>Q 1
Can variance be negative?
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Thinking Corner>Q 1
Can the standard deviation be more than the variance?
EASY
10th Tamil Nadu Board
IMPORTANT
Mathematics Standard 10>Chapter 8 - Statistics And Probability>Progress Check>Q 1
If the variance is 0.49 then the standard deviation is ?