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Math Help - Some Help

  1. #1
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    Some Help

    I am totally lost in how to do this. I am looking at my book and it's telling me to use the TI-84 and I follow the steps which it states (Press 2n,d VARS [2:nORMAL CDF(], then enter the two z scores seperated by a coma as in the (left z score, right z score). Only issue is I am given a single number and asked to find the area. Here is the copy.
    Attached Thumbnails Attached Thumbnails Some Help-zscore.png  
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  2. #2
    MHF Contributor harish21's Avatar
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    Re: Some Help

    Quote Originally Posted by Past45 View Post
    I am totally lost in how to do this. I am looking at my book and it's telling me to use the TI-84 and I follow the steps which it states (Press 2n,d VARS [2:nORMAL CDF(], then enter the two z scores seperated by a coma as in the (left z score, right z score). Only issue is I am given a single number and asked to find the area. Here is the copy.
    look at this page. see the example and use the given table to find the area
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  3. #3
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    Re: Some Help

    Quote Originally Posted by harish21 View Post
    look at this page. see the example and use the given table to find the area
    Ahh, thanks, yeah I see that same chart within my book. I was just trying to use the "Technology" part since, we probably wont have this chart for a future exam and probably have to know how to plug these in the TI83/84 calculator.
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