The principal observes 8th grade the following day. Of the 120 students, 42 brought their lunch from home, 72 purchased lunches,
1 answer:
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Answer:
76 ft
Step-by-step explanation:
Use the circumference formula, C = 2r
Plug in the radius:
C = 2r
C = 2(12.1)
C = 76.0
So, the circumference is 76 ft
Answer:
A
The value is
B
The value is
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is
The sample size is n = 25
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From the z table the area under the normal curve to the left corresponding to -0.6364 is
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Generally the standard error of mean is mathematically represented as
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Generally the probability that the average weight of 25 baby boys born in a particular hospital have an average weight less than 7 lbs is mathematically represented as
=>
From the z table the area under the normal curve to the left corresponding to -3.1818 is
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