Data analysts are responsible for analyzing records and data quantitatively and qualitatively.

What do we measure to determine the precision of an instrument?

a. Mean measured reference value b. Difference between the mean measured and actual reference value c. Range of the mean measured reference value d. Standard deviation (SD) of the mean measured reference value

The mother of a 9-month-old baby informs you that her child has yet to make any sounds that resemble words or speech. She asks you if this is normal. What is your best response?

A) "Babies typically begin making words at 6 months. It may be a good idea to call your pediatrician for additional information." B) "It usually takes 10 to 12 months for babies to begin talking. Give it time. This is normal." C) "To be honest, all babies develop at their own pace; this is likely fine." D) "Why don't you take him to your pediatrician to find out what is wrong."