Friday
March 24, 2017

Post a New Question

Posted by on Tuesday, January 31, 2012 at 10:42pm.

the distribution of scores on a test is mound shaped and dsymmetric with a mean score of 78. if 68 percent of the scores fall between 72 and 84, what is the stand deviaition

  • statistics - , Tuesday, January 31, 2012 at 10:45pm

    Approximately 68% of scores occur between mean ± one standard deviation. Does that help?

  • statistics - , Tuesday, January 31, 2012 at 10:51pm

    the answer is the standard deviation is 6 but i don't know how to get that

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question