Let \V be the subspace of R4 with otthonormal basis [WI. ',1,'2. W3}. where w, , Ji o Writt: tht: vt:(;tor ~l ~J as w + u with w in IV and u ia IV.i.

Z SCORES AND TABLE NOTES AND PRACTICE Z-Scores -measure of how many standard deviations there are between a data value and the mean Z= x-μ(mean of population) / σ (standard deviation) EX; $247 skis Mean $279 SD= $16 Z= 247279 /16 Z=2 The price of the skis are 2 standard deviations below the mean ZTable used to find the proportion that falls...