Ashipment of racquetballs with a mean diameter of 60 mm and a standard deviation of 0.9 mm is normally distributed. by how many standard deviations does a racquetball with a diameter of 58.2 mm differ from the mean?

A shipment of racquetballs with a mean diameter of 60 mm and a standard deviation of 0.9 mm is normally distributed. racquetball with a diameter of 58.2 mm differ from the mean by 1.8 mm. so the 58.2 mm racquetball differ by 2 standard deviation by the mean.

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !