Identify the given values: The sum of observations is Sum=1500
. The number of observations is n=30
Average = Sum of observations / Number of observations
= 1500 / 30
= 50
Dear Money is expensive to borrow because the rate of interest is high.
This is because people prefer to save when interest rates are high and spend or borrow when rates are low.
Put differently, the cost of money becomes more expensive.
Variance measures the spread of data around the mean.
For a constant number, all values are the same, so there is no variation, making variance 0.
The first and the most important function of management is Planning.
Planning involves setting objectives in advance, a goal which is to be achieved within a stipulated time.
ND5-09-2023
To find the range, subtract the smallest value from the largest value:
Maximum value = 28
Minimum value = 20
Range = Maximum value - Minimum value
= 28 - 20
= 8
Median is the middle value when data is arranged in order.
Ordered data: 63, 65, 66, 67, 69 → middle value is 66.
To find the median, let's arrange the weights in order:
27, 29, 30, 32, 33, 35, 37, 47, 48
Since there are 9 values (an odd number), the middle value is the median:
The median is the 5th value: 33
Step 1: Calculate the mean of the marks.
Mean = (6 + 8 + 10 + 12 + 4 + 20) / 6
= 60 / 6
= 10
Step 2: Calculate the mean deviation.
Mean Deviation = (|6-10| + |8-10| + |10-10| + |12-10| + |4-10| + |20-10|) / 6
= (4 + 2 + 0 + 2 + 6 + 10) / 6
= 24 / 6
= 4
Step 3: Calculate the coefficient of dispersion.
Coefficient of Dispersion = Mean Deviation / Mean
= 4 / 10
= 0.4
