Mean = ______.
Sum of all observations + Total Number of observations
Sum of all observations - Total Number of observations
Sum of all observations × Total number of observations
Total probability of an event is ______.
0.1
0
1
100
For a given data highst value - lowest value ?
Mean
Median
Range
Meandeviaton about mean
A coin is tossed once, the probability of getting a tail is ________.
1/2
1/4
You spin the spinner once
What is P (red ) ?
1/5
In a single throw of a dice, the probability of getting a number less than 7 is _____.
1/7
1/6
List of all possible outcomes of a random experiment is known as _____
Probability
Data
Event
Sample space
The mode of the following data is 20, 30, 68, 32, 55
20
30
32
None of these
Which of the following is not a measure of central tendency ?
Variance
Mode
The following bar graph shows the number of items sold in a day. Which of 4 items has the highest total sale.
Books
Pens
Files
Erasers
