In a distribution with a mean of 30 and a standard deviation of 4, approximately 16% of scores will fall below: a.24-26 b.28-30 c.21-23 d.11-13 "Get 15% discount on your first 3 orders with us" Use the following coupon FIRST15 Order Now Share on Facebookshare Tweet this!tweet Share on LinkedInshare Share on Google++1 Share on Pinterestpin it
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