(b) In Excel, find the sample average and the sample standard deviation. Find the sample size, find the degrees of freedom, find the t-critical value.

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Ill mark the brainliest if you me with the these three questions 7,8,9

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2