What am I supposed to be helping with the picture you took is only showing examples
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.
Answer:
z-score for 900 points = -4
Step-by-step explanation:
To find the z scores
z=(x-mean)/standard deviation
so
z=(900-1500)/150
z= -600/150
Answer:
commutative property is C+2+0=C+2
(As a+b=b+a is the law of commutative property of addition )
Answer:
2/3
Step-by-step explanation:
im pretty sure that's the answer