Answer and working out attached below. Hope it helps
Answer:
20+20+20+20+20+20= 120
Step-by-step explanation:
2^6 = 120 hope this helps! plz mark brainliest
Z score = (x -mean) / standard deviation.
For this problem X = 50 cm.
Z-score = (50 - 49.2) / 1.8
Z score = 0.8 / 1.8
Z score = 0.44
Look up 0.44 on a z-score table.
0.44 = 0.6700
0.67 x 100 = 67% will be 50 cm or longer.
