If you mirror the shape on the top across the x-axis you get the shape on the bottom. It’s like if you folded it over the horizontal line
Answer:
0.0475
Step-by-step explanation:
Given that :
Area To the left :
P(Z < 550) = 0.0475 ; that is proportion who scored better than of 550 has a Zscore of 0.0475.
Hence, percentage of students who scored better than she did will be 0.0475
1/2 * 6 +9 - (18/6)
1/2 * 6 +9- 3
3+9-3
12-3
9
Hope this helps! :)