Latest exam Aptitude Question SOLUTION: Does anyone understand this question? The standard deviation of a distribution is 20. If a sample of 225 is selected, what is the standard error of the mean?

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Previous Question: Solve the following system by using either addition or substution. If a unique solution does not exist, state whethher the system is depent or inconsistent. 10x + 2y = 7 y = -5x + 3 Next Question: Sales--Tickets for a concert were sold to adults for $3 and to students for $2. If the total sold were the amount of $ 824 and twice as many adult tickets were sold,then how many of each were sold?

(#M40130980) EXAM Numerical Ability question Keep an EYE

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The standard deviation of a distribution is 20. If a sample of 225 is selected, what is the standard error of the mean?: Asked In exam (9 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Previous Question: Solve the following system by using either addition or substution. If a unique solution does not exist, state whethher the system is depent or inconsistent. 10x + 2y = 7 y = -5x + 3 Next Question: Sales--Tickets for a concert were sold to adults for $3 and to students for $2. If the total sold were the amount of $ 824 and twice as many adult tickets were sold,then how many of each were sold?

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