Q. No.1:Wellstone Inc. produces and markets replacement covers for cell phones in a variety of colors. The company would like to allocate its production plans to five different colors: bright white, metallic black, magnetic lime, tangerine orange, and fusion red. The company set up a kiosk in the Mall of America for several hours and asked randomly selected people which cover color was their favorite. The results follow: Bright white Metallic black Magnetic lime Tangerine orange Fusion red 140 104 325 455 128 а. Draw a bar chart & pie chart for the table. b. If Wellstone Inc. plans to produce one million cell phone covers, how many of each color should it produce? Q. No.2:Discuses at least five real life applications and importance of Index Numbers The prices and the numbers of various items produced by a small machine and stamping plant are reported below. Use 2000 as the base.Calculate base year weighted and current year weighted index numbers 2009 2000 Item Price Quantity 17,000 Price Quantity 20,000 Washer $0.07 $0.10 Cotter pin 0.04 125, 0000 0.03 130,00 Stove bolt 0.15 40,000 0.15 42,000 Hex nut 0.08 62,000 0.10 65,000 Q. No.3:the owner of Haverty's Furniture Company was studying the relationship between sales and the amount spent on advertising. The sales information for the last four months is repeated below. Month Advertising Expense ($ million) Sales Revenue ($ million) July 7 August 1 3 September 3 8 October 4 10 a) Determine the regression equation. (b) Interpret the values of a and b. (c) Estimate sales when $3 million is spent on advertisin

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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.