The duration of hospital stay for 100 patients has a mean of 7.8 days and a median of 5.0 days. Which interpretation is most consistent with these results?

A dataset contains 200 participants. The frequency distribution for education level has frequencies of 85, 72, 31, and 7 across four categories. What should the researcher investigate before reporting the distribution?

A dataset contains the following variables: age_years, parity, exclusive_bf, income_gyd, education_level, and number_of_antenatal_visits. Which variable would generally require the most careful consideration before being summarized as a numerical continuous measure?

A study investigates factors associated with exclusive breastfeeding among mothers of infants aged 6–12 months. The questionnaire asks: “How many weeks old was your baby when you first introduced water?” During data entry, one participant has a value of 52 weeks. What is the most appropriate first step in processing this value?

A researcher enters education as 1 = Primary, 2 = Secondary, 3 = Tertiary and calculates the mean education code as 2.14. What is the main concern with interpreting 2.14 as a meaningful average level of education?