If you correctly answer 12 out of 18 questions on a quiz, what is your percentage correct? (enter your answer as a fraction.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?