The following frequency distribution shows the daily sales (in thousands RM) of sample of 50 retail stores. Daily sales (RM’000) 10 to but less than 20 20 to but less than 30 30 to but less than 40 40 to but less than 50 Frequency 4 10 17 9. 50 to but less than 60 10 (i) Calculate the mean and the standard deviation. (ii) Compute the median and interpret the value. (iii) Find the coefficient of skewness and comment on the shape of the distribution.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Solve question (iii)only
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