Police at a sobriety checkpoint pull over every 6th car to determine whether the driver is sober. This type of sampling is called:

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?