DY0-001 Real Exam Questions
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A data scientist is working with a data set that has ten predictors and wants to use only the predictors that most influence the results.
Which of the following models would be the best for the data scientist to use?
Correct answer: D
A company created a very popular collectible card set. Collectors attempt to collect the entire set, but the availability of each card varies, because some cards have higher production volumes than others. The set contains a total of 12 cards. The attributes of the cards are shown.
The data scientist is tasked with designing an initial model iteration to predict whether the animal on the card lives in the sea or on land, given the card's features: Wrapper color, Wrapper shape, and Animal.
Which of the following is the best way to accomplish this task?
Correct answer: D
Which of the following problem-solving approaches is a set of guidelines to handle highly variable and not fully apparent situations?
Correct answer: C
A data scientist has built an image recognition model that distinguishes cars from trucks. The data scientist now wants to measure the rate at which the model correctly identifies a car as a car versus when it misidentifies a truck as a car.
Which of the following would best convey this information?
Correct answer: A
A data scientist has constructed a model that meets the minimum performance requirements specified in the proposal for a prediction project. The data scientist thinks the model's accuracy should be improved, but the proposed deadline is approaching.
Which of the following actions should the data scientist take first?
Correct answer: C
Under perfect conditions, E. coli bacteria would cover the entire earth in a matter of days.
Which of the following types of models is the best for explaining this type of growth?
Correct answer: D
A data analyst is analyzing data and would like to build conceptual associations.
Which of the following is the best way to accomplish this task?
Correct answer: A
A data scientist wants to evaluate the performance of various nonlinear models.
Which of the following is best suited for this task?
Correct answer: A
Which of the following is the naive assumption in Bayes' rule?
Correct answer: B
During EDA, a data scientist wants to look for patterns, such as linearity, in the data.
Which of the following plots should the data scientist use?
Correct answer: C