You and your friend enjoy playing chess. You are equally matched players, so each time you play together, there is a 50% chance that you will win.
What is the experimental probability that you will win exactly 3 of the next
4 games?

1/3(x-10)=-4 solve for x with steps

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Identify the number 127 as a rational or irrational. explain