Arock is 7 feet below the surface of a river. if its position can be recorded as −7 feet, what would the position of 0 represent? on the surface of the river at the bottom of the river 7 feet above the surface of the river 7 feet below the surface of the river

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Asinusoidal function whose frequency is 1/6pi

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.