⟩ Explain variance?
Describes how far values lie from the mean
var(x) %return 1.1429
Describes how far values lie from the mean
var(x) %return 1.1429
A solar eclipse can only occur at a
What percent of stars in the sky that appear to be single stars are actually binary stars
The 29 ½ days it takes the Moon to complete an orbit around the Earth is called a
In the Australian winter night sky, which of the following is true regarding the constellation Orion
Which of the following is NOT true about meteorites
The apparent speed of the Sun along the ecliptic
According to Keplers Third Law, plotting the squares of the periods of the planet against the cubes of the semi- major axes of their orbits will result in what sort of graph
The time between two successive meridian transits of the Sun as observed from a stationary spot on the Earth’s surface is called
The hydrogen envelope that surrounds the comets nucleus derives its hydrogen most directly from
At a location half-way from the Equator to the North Pole, which of the following correctly describes the stars apparent motion