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.
Earlier it was mentioned that Mars followed a highly eccentric orbit. The orbit of Mars is the second most eccentric in the Solar System. Only Mercuryâs orbit is more eccentric. At perihelion Mars is 206,655,215 km from the Sun and at aphelion it is 249,232,432 km distant.That is a variation of of just under 42,600,000 km. The average distance from Mars to the Sun (called the semi-major axis) is 228 million km.arlier it was mentioned that Mars followed a highly eccentric orbit. The orbit of Mars is the second most eccentric in the Solar System. Only Mercuryâs orbit is more eccentric. At perihelion Mars is 206,655,215 km from the Sun and at aphelion it is 249,232,432 km distant.