Question Bank
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The mean of 10 observations is 15. If one observation 24 is replaced by 34, what is the new mean?
Which measure of central tendency can be determined graphically using an Ogive?
In a set of data, the sum of deviations of all observations from their arithmetic mean is always:
If the range of a set of 5 consecutive even numbers is R, what is the value of R?
Calculate the Upper Quartile (Q3) for the following data: 10, 15, 20, 25, 30, 35, 40.
Which of the following is NOT a measure of central tendency?
The following pie chart shows the distribution of a student's daily routine. What angle represents 'Sleep' if it takes 8 hours?
For a symmetrical distribution, which of the following is true?
In a class of 40 students, 10 failed. What is the angle in a pie chart representing the number of passed students?
If the sum of observations is 500 and the mean is 25, how many observations are there?
Which of the following classes is the median class for a distribution where N=100 and CF for classes (0-10, 10-20, 20-30, 30-40) are (10, 35, 65, 85)?
What is the mode of a continuous series? It is the value in the class with the:
In a data interpretation task, if the 'Less than' ogive and 'More than' ogive intersect at (30, 50), what is the median?
A cricketer scores 40, 50, 60, 0, and 100 runs in five matches. What is his mean score?
If the mean of x, x+3, x+6, x+9, x+12 is 10, find x.
In a frequency distribution table, what is the mid-value of class 25 - 35?
What is the formula for the position of the Upper Quartile (Q3) in a discrete series with N items?
If the arithmetic mean of 10 items is 20 and the mean of 20 items is 10, what is the combined mean of all 30 items?
What is the coefficient of range for a data set with Max = 100 and Min = 20?
In a bar graph, if a bar of length 8 cm represents 400 units, what length will represent 1000 units?