Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Math & Sciences (https://www.askmehelpdesk.com/forumdisplay.php?f=402)
-   -   Z score calculation (https://www.askmehelpdesk.com/showthread.php?t=399602)

  • Sep 24, 2009, 05:34 PM
    dvitalo
    Z score calculation
    With a mean of 69 mph and a SD of 12.6 mph, what percentage of cars were travelling at 60 mph or slower?
  • Sep 26, 2009, 11:22 AM
    galactus
    Just use the formula



    Look up the corresponding value in a z table.

    • All times are GMT -7. The time now is 04:52 PM.