The blood cholesterol levels in 14-year-old boys are approximately normally distributed. Within this curve, 99.7% of the levels, centered about the mean, are
between 75 and 255 milligrams of cholesterol per deciliter of blood. The standard
deviation is 30 milligrams of cholesterol. Use this information to estimate the
mean blood cholesterol level in 14-year-old boys. Approximate the probability
that a boy has a cholesterol level less than 135. Explain how you determined your
answers.

Which best explains why england had the highest standard of living in the world in 1990? a.england started industrializing before the rest of the world b.england had the highest population in the world. c.england hadthe most fertile soil in the world. dengland had more natural resources.

In a 2010 article “fact check: eastern u.s. earthquake risk” by chris mould, the author provides as evidence the following statement by the united states geological survey: “although earthquakes may be less frequent in the eastern u.s., … urban areas in the east could face bigger losses because the shaking would affect much larger areas than similar quakes in the west. in addition, most homes and buildings in the east are not designed to withstand earthquakes.”this statement directly relates to which of the following concepts? a. vulnerabilityb. hazardc. riskd. severity

How forest companies conflict with aboriginal