Eric's Easter Eggs manufactures large chocolate eggs. The length of these eggs follows a normal distribution with mean = 13 inches and standard deviation = 1.8 inches.
If ONE egg is randomly selected, what is the probability the egg will be longer than 10.8 inches?
Must show ALL work
Solution :
Given ,
mean =
= 13
standard deviation =
= 1.8
P(x > 10.8) = 1 - P(x<10.8 )
= 1 - P[(x -
)
/
< (10.8-13) /1.8 ]
= 1 - P(z < -1.22)
Using z table
= 1 - 0.1112
= 0.8888
probability= 0.8888
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