Simplify the Expression $$\sqrt { \frac { 4 } { 5 } }$$

question 146

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$\sqrt { \frac { 4 } { 5 } }$$

• A) 27
• B) \(\frac { 2 \sqrt { 5 } } { 5 }\)
• C) \(\frac { 4 \sqrt { 5 } } { 5 }\)
• D) \(2 \sqrt { 5 }\)

Understand the skewness of statistical distributions and identify non-skewed distributions.

Compare and contrast the Student t, chi-squared, and F distributions in terms of their shape, mean, and variance.

Apply distribution tables (Student t, chi-squared, F) to find specific statistical values.

Recognize the relationship between distribution characteristics and the degrees of freedom, including how they affect the mean and variance.

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Definitions:

Autosomal Abnormality

A genetic condition caused by a mutation in one of the autosomal (non-sex) chromosomes, affecting both males and females equally.

Edwards Syndrome

A genetic disorder caused by the presence of all or part of an extra 18th chromosome, characterized by developmental delays, intellectual disability, and various physical abnormalities.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by developmental delays and distinctive physical features.

Nondisjunction

An error in cell division that results in daughter cells with an incorrect number of chromosomes, leading to genetic disorders such as Down syndrome.