Answer:
I am not going to give you the answer but i will give you this
Step-by-step explanation:
-1/2= -0.5
3/5= -0.6
5/8= 0.625
-2/3= -0.666666
Normalizing the bounds,
y=186, z = (186-200)/12 = -1.17
y = 210, z = (210 - 200)/12 = 0.83
We want the area of the standard normal between those. Looking it up in the cumulative table,
Ф(1.17) = 0.87900
Ф(0.83) = 0.79673
We need Ф(-1.17) which is 1 - Ф(1.17)
Then the probability we seek is
p = Ф(0.83) - Ф(-1.17) = Ф(0.83) + Ф(1.17) - 1 = 0.87900 + 0.79673 - 1 = 0.67573
Answer: 67.6%
The correct answer is 2 1/6.
Good Luck...:)
Answer:
600000000000
Step-by-step explanation:
Answer: A.
Step-by-step explanation: ( Have a Pleasurable day mate.)
