You Were Told That the Mean Score on a Statistics

question 166

Short Answer

You were told that the mean score on a statistics exam is 75 with the scores normally distributed.In addition,you know the probability of a score between 55 and 60 is 4.41% and that the probability of a score greater than 90 is 6.68%.What is the probability of a score lower than 55?

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Definitions:

Zaitsev's Rule

A rule in organic chemistry predicting that in an elimination reaction, the more substituted alkene product will be favored.

Heat of Hydrogenation

The change in enthalpy that accompanies the addition of hydrogen (H2) to unsaturated bonds in a molecule, typically measured as a release of heat.

Constitutional Isomers

Compounds sharing identical molecular formulas yet exhibiting differences in the arrangement of their atoms.

Catalytic Hydrogenation

The process of adding hydrogen to unsaturated bonds in organic compounds in the presence of a catalyst.