Statistics I20785 marksNumerical: weighted average calculationMeasures of central tendency
If 50 image of your website, 10 have black and white image, and their average scanned image occupies with 2.5 megabytes of memory. The total image occupies by the entire work 281 megabytes. Find the average occupies megabytes of those color images.
If 50 image of your website, 10 have black and white image, and their average scanned image occupies with 2.5 megabytes of memory. The total image occupies by the entire work 281 megabytes. Find the average occupies megabytes of those color images. [5]
Parameter Value ------------------ Total images 50 Black and white (B&W) images 10 Average size of each B&W image 2.5 MB Total memory occupied by all images 281 MB --- $$\text{Color images} = 50 - 10 = 40$$ $$= 10 \times 2.5 = 25 \text{ MB}$$ $$= 281 - 25 = 256 \text{ MB}$$ $$= \frac{256}{40} = 6...