The table shows transactions from 5 different bank accounts. Fill in the missing numbers then answer the questions below.

What is happening in Account 2? What do each of the numbers tell you about Account 2?

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

Determine if the equation defines y as a function of x: 2xy = 1. yes o no