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    zshegog's Avatar
    zshegog Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 9, 2013, 02:27 PM
    Stats
    The local police force has been given an exam to test their knowledge on the effects of narcotics on the human brain. The mean on the test was 78 and the standard deviation was 10. What percentage of the police has scores : provide interpretation for each

    a) between 79 and 89
    B between 85 and 90
    C above82
    D above 85
    E between 75 and 85
    F between 80 and 85
    G below 75
    H below 82
    J below 85
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #2

    Feb 9, 2013, 02:29 PM
    What do YOU think ?
    While we're happy to HELP we won't do all the work for you.
    Show us what you have done and where you are having problems..
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