Approximately 20% of IU students suffer from triskaidekaphobia. IU Health offers a free screening test for triskaidekaphobia that is accurate 90% of the time, which means that someone who has triskaidekaphobia will test positive with probability 0.90, and someone who does not have triskaidekaphobia will test negative with probability 0.90. You take the screening test and the result is negative. What is the probability that you in fact really do not have triskaidekaphobia? (A) 0.18 (B) 37 (C) 3/37 (D) 0.72 (E) 0.08 (F) ½3 (G) 0.02 (H) %13
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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