10 out of 85 students are left handed a my school if 391 students are at my school total how many students in my school at left handed

the scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 9. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score?

If you work and 8 hour shift on each weekend day and take two weeks off during the year, how many hours will you work in a year? answer choices are 800, 880, 900, 960

Are 4/8 and1/2 equivalent fractions

What is the largest whole number that will round up or down to 500 if we're rounding to the nearest hundred

How far apart is - 15 and positive 20

A study is conducted to investigate whether customer satisfaction is greater among computer companies that offer tech support versus those that do not offer tech support.

How to find the x-intercept of a linear equation of y=6x-9

How will adding the value 50 affect the mean and median of the data set 8, 10, 12, 18, 22? A. The mean will increase more than the median. B. The median will increase more than the mean. C. The mean and median will increase by the same amount. D.

Goran's gas tank is 1/3 full. After he buys 3 gallons of gas, it is 1/2 full. How many gallons can Goran's tank hold?

Explain why this is or is not a probability distribution. x 1 2 3 4 P (x) 0.2 0.1 0.4 0.2