Question

find the variances of each of the distribution whose pdfs are listed in exercise 3.1-12 do the relative magnitude of the variance make sense in light of the sketches of the pdfs obtained in that exercise​

Answer 1

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The direction is mostly shown on the map with the help of different arrows where the right arrow indicates east and the left arrow indicates west. The arrow indicating up will be considered as north and the arrow which indicates down, it depicts south direction.

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Answer 2

Answer:

On the moon, there's no air to breathe, no breezes to make the flags planted there by the Apollo astronauts flutter. However, there is a very, very thin layer of gases on the lunar surface that can almost be called an atmosphere. Technically, it's considered an exosphere.