Precision and Recall in Machine Learning Quiz 1 Number of questions: 16Time limit: 7 minutesMust be finished in one sitting. You cannot save and finish later.Questions displayed per page: 1Will allow you to go back and change your answers.Will not let you finish with any questions unattempted. 1 / 16 Describe the accuracy and precision of the image Accurate and Precise Not accurate and not precise Accurate and not precise Not Accurate and Precise 2 / 16 The closeness of a measurement to its true value is a measure of its: Usefulness Accuracy Reproducibility Precision 3 / 16 Saba estimates the weight of her cat to be 8 pounds. The actual weight of the cat was 10 pounds. Find the percent error. 20% 15% 25% 30% 4 / 16 Which of the following lengths is the same as one meter? One hundred centimeters One centimeter One thousand centimeters Ten centimeters 5 / 16 Based on the data provided below which student has the most precise data? Student B Cannot be determined Student A Student C 6 / 16 What is the quantity 7.5 millimeters expressed in centimeters? 0.075 cm 7.5 cm 0.75 cm 75 cm 7 / 16 It is a measure of how close measurements come to each other when they are made in the same way Precision Error Accuracy Extrapolation 8 / 16 A reaction takes place that is expected to yield 171.9 g of product, but only yields 154.8 g. What is the percent error for this experiment? 9.9% 90.1% 111.0% 17.1% 9 / 16 The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error? 15.79% 2.25% 18% 18.75% 10 / 16 Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of exactly 7.32 g for the mass of the standard. These results imply that the balance that was used is: Neither accurate nor precise Precise but not accurate Accurate but not precise Both accurate and precise 11 / 16 A chemist who frequency carries out the same complex experiment is likely to have high _____. None of the above Accuracy Error Precision 12 / 16 A and B both wash cars and change oil. Currently, each man washes and changes oil by himself, but the process takes lots of time. they would MOST LIKELY improve their efficiency if A washes car while B changes oil A washes B car while B washes A's car A & B wash a car and change oil together A and B reduce the number of cars they wash 13 / 16 A set of data are all close to each other, and they are close to the actual value. This set of data can be described as... None of the above Both precise and accurate Precise Accurate 14 / 16 A set of data are all close to each other, but they are not close to the actual value. This set of data can be described as... Accurate Precise None of the above Both precise and accurate 15 / 16 This bull eyes demonstrates… High Accuracy & High Precision Low Accuracy & Low Precision Low Accuracy & High Precision High Accuracy & Low Precision 16 / 16 This bullseye demonstrates... High Accuracy & High Precision Low Accuracy & Low Precision High Accuracy & Low Precision Low Accuracy & High Precision Your score is LinkedIn Facebook Twitter 0% Restart quiz
