If a data set has an even number of observation, the median ______.
Can not be determined
Is the average value of the two middle items
Must be equal to the mean
None of the above
In a single throw of a dice, the probability of getting a number less than 7 is _____.
1
1/7
0
1/6
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
The most common value in a data is the ______ of the data.
Median
Mode
Mean
None of these
The median of the following scores 20, 30, 40, 50, 60, 70
35
30
40
45
The median of the following data is 2, 4, 5, 2, 6, 7, 4
4
2
6
7
List of all possible outcomes of a random experiment is known as _____
Probability
Data
Event
Sample space
For a given data highst value - lowest value ?
Range
Meandeviaton about mean
The range of the following data is 21, 6, 7, 9, 4, 8, 13, 19.
15
13
17
Which of the following is not a measure of central tendency ?
Variance
