Blog

If two random variables are NOT independent, then the correlation between them must be

You may click on the following links and open in a new tab in your browser. Do not open in another application, such as Adobe Acrobat.  Formula Sheet OR https://people.clas.ufl.edu/dlindberg/sta-3032-formula-sheet-1/ R Commands OR https://people.clas.ufl.edu/dlindberg/sta-3032-r-functions/ R Snippet: https://rdrr.io/snippets/ Wolfram Alpha: https://www.wolframalpha.com/

A manufacturing facility constructs airplanes with a mean of 140 tons and a standard deviation of 30. Using Chebyshev’s Theorem, what is the smallest probability that an airplane’s weight will be between 92 tons and 188 tons? Provide your work in the box for Question 1 at the top.  

What is the probability that the drill bit is cobalt and fails? Provide your work in the box for Question 1 at the top.  

Which of these allows subsetting into the rows of a dataframe? Select all that apply.

How many rows do we have in the data frame named ‘df_drop’? “`import numpy as np import pandas as pd df_miss = pd.DataFrame({‘x’:[2, np.nan, np.nan, 1, 2], ‘y’:[np.nan, np.nan, 6, 0, 1]}) df_miss df_drop = df_miss.dropna() “`

Suppose random variable X is from a Poisson Distribution with parameter 

In the actual economy, households

Identify what you consider to be the most important macroeconomic issue today. Explain why you believe your choice to be the most important issue. 

Other things the same, which of the following would increase productivity?