Count the total number of trees in United States.
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Can you explain cross-validation?
Explain supervised learning?
Which method in pandas.tools.plotting is used to create scatter plot matrix?
Explain survivorship bias?
Why is data cleaning essential in data science?
How do you use lambda in python?
what is the difference between extrapolation and interpolation?
Why is DBSCAN required?
You have a bag with 6 marbles. One marble is white. You reach the bag 100 times. After taking out a marble, it is placed back in the bag. What is the probability of drawing a white marble at least once?
Explain unsupervised learning?
Explain why data cleansing is essential and which method you use to maintain clean data?
Can you provide examples for other computations in spark?