What is the most appropriate probability distribution for modeling auto_approved? 

What is the unit of analysis of the dataset described above? 

With the data presented above, SmartLearn can address:

A portfolio is invested in stocks Alpha and Beta with 30% of the portfolio invested in Alpha. The exhibit below illustrates the covariance matrix and expected returns with respect to the portfolio.

The correlation coefficient (r) between alpha and beta is closest to:

Which correlation coefficient best matches the scatterplot shown below?

The cumulative probability function of the daily number of customers visiting a retail store during a specific time slot () is given in the table below.

The expected value and variance of the daily number of costumers visiting the store are, respectively,

Which correlation coefficient best matches the scatterplot shown below?

The exponential distribution is only defined for non-negative values.