The average interval for the population is expected to be 300 days, but you find that your sample has a mean interval of 290 days and a standard deviation of 50 days. The t-score is then (290â300)/(50/15^0.5) or â0.775.
It takes Mars about 687 Earth days (1.882 Earth years) to orbit the Sun.The orbital path of Mars is about twice that of Earth. Mars orbits about 227 million kilometers away from the Sun. The planet travels a distance of approximately 1.43 billion kilometers (888 million miles) in 686.971 Earth days.It takes 1.88 years for mars to make one revolution around the sun.enus orbits the sun in approximately 225 Earth days. (224.70069 days) Strange as it may seem, Venus rotates so slowly that a day on Venus is longer than its year. It take â¦ s Venus about 243 Earth days to spin once on its axis. The slow rotation is also in a retrograde (clockwise) direction, from east to west.
So if Mars and Earth are side-by-side every 780 days, let's figure out how long it takes for Mars to go around exactly once. We know that in 780 days, the Earth has revolved around the sun twice in 730 days, with 50 days left over.In those 50 days, the earth goes around the sun 50/365 of an orbit.o if Mars and Earth are side-by-side every 780 days, let's figure out how long it takes for Mars to go around exactly once. We know that in 780 days, the Earth has revolved around the sun twice in 730 days, with 50 days left over.