Watch this Khan Academy Empirical Rule video:

https://www.youtube.com/watch?v=OhRr26AfFBU

Use the Empirical Rule. (Do not use technology. Technology will give a slightly different answer.)

Draw a sketch of the normal distribution and label the mean and 1, 2, and 3 standard devitons above and below the mean with computed values.

Assume that the weight of 1-year-old girls in the USA is normally distributed with Mean = 9.5 kg, Standard Deviation = 1.1 kg.

(a) 68% of the data is between which 2 values?kg --kg

(b) 95% of the data is between which 2 values?kg --kg

(c) What percentage of the data is less than 8.4 kg?%

(d) What percentage of the data is between 7.3 kg and 11.7 kg??

(w) What percentage of the data is more than 12.8 kg??