A Sample of Children Age 2-5 Years Is Chosen at Random

question 53

Multiple Choice

A sample of children age 2-5 years is chosen at random from an outpatient clinic.  The number of urinary tract infections (UTIs) over a 1-year period is given in the figure below. What was the average number of UTI episodes over 1 year for a child in this sample?

• A)Between 0 and 1
• B)1
• C)Between 1 and 2
• D)2
• E)Between 2 and 3

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Definitions:

Sex-limited

Traits or characteristics that are expressed in only one sex, even though the genes for these traits might exist in both sexes.

Sex-linked

Referring to traits genetically determined by genes located on sex chromosomes.

Autosomal

Pertaining to any of the chromosomes except the sex chromosomes; relating to genes that are located on the autosomes.

Recessive

A term used to describe a gene that expresses its trait only when paired with an identical gene.