Which correlation coefficient best matches the scatterplot shown below?

Covariance can be used to determine the strength of a quadratic relationship between two variables.

Which correlation coefficient best matches the scatterplot shown below?

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 of the following elements are included in an ASHTAM? 

 1. FIR affected, 

 2. Local time/date of eruption, 

 3. Volcano name, 

 4. Period of validity, 

 5. Air routes and flight levels affected.

You are flying on a VFR flight in VMC in a controlled airspace. Suddenly, you realize you are unable to maintain VMC. What are your actions according ICAO Annex 2?

A pilot is performing visual patterns at a controlled aerodrome when he/she notices that the radio is unserviceable. The aircraft forms part of the aerodrome traffic. Of the items listed below, which answer correctly lists the light signals coming from the tower that a pilot may spot in flight? 

 1. Series of red flashes, meaning divert as the aerodrome is unsafe 

 2. Series of white flashes, meaning perform holding patterns and wait for further instructions 

 3. Series of green flashes, meaning approach to land at the aerodrome

 4. Steady green, meaning cleared to land 

 5. Steady red, meaning that the tower is closing

Describe where the outbound timing begins in a holding pattern:

An aircraft is flying from the USA to Germany. Overhead the UK, the pilot is told that he/she is no longer allowed to enter Germany. All mentioned countries signed the International Aviation Convention. This situation is...

According to SERA (Standardised European Rules of the Ai must... , when an IFR pilot wants to change from IFR to VFR, he/she must...