Betsy is going purchase some stock. She is trying to choose between 7 tech stocks (one of which is Microsoft) and 12 industrial stocks (one of which is Bethlehem Steel). (a) If she randomly chooses a stock, what is the probability it will be a tech stock? (b) If she randomly chooses a stock, what is the probability it will be Microsoft? (c) If she decides to choose one of the tech stocks, what then is the conditional probability that it will be Microsoft? (d) If she decides to choose one of the industrial stocks, what is the probability it will be Bethlehem Steel?
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.
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