⟩ Explain quartile?
► first quartile (25th percentile)
► second quartile (50th percentile)
► third quartile (75th percentile)
► kth percentile
► prctile(x, 25) % 25th percentile, return 2.25
► prctile(x, 50) % 50th percentile, return 3, i.e. median
► first quartile (25th percentile)
► second quartile (50th percentile)
► third quartile (75th percentile)
► kth percentile
► prctile(x, 25) % 25th percentile, return 2.25
► prctile(x, 50) % 50th percentile, return 3, i.e. median
How long is a day on Saturn?
Did water come from comets?
How was the moon formed?
If gravity only attracts mass and if light does not have mass why does it appear to bend when passing a planet?
Is the gravitational pull on an object equalized if the object is at the centre of a planet, i.e. surrounded by the mass of the planet, which is creating the gravity?
Is Pluto really a planet?
Is the Moon escaping the earth?
What are asteroids like?
Is there water in moon rock?
Which of the following constellations cannot be seen in the summer sky of the northern hemisphere?