Answer:
3.212*10^3
Step-by-step explanation:
you moved the decimal place 3 times
Answer:
the answer is 2,and 4 and 5
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Answer:
The number is
students
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is 
The sample size is n = 2000
percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

Generally

So


From the z table the value of 
and 


The percentage is 
The number of students that will get this score is

