Biostatistics for the rest of us😃

Question 39: Only a genius can attempt this question on the scales of measurement in statistics.

2 months ago (edited) | [YT] | 2

Biostatistics for the rest of us😃

Do you know that all statisticsl data are numbers but not all numbers can be regarded as statistical data?

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4 months ago | [YT] | 4

Biostatistics for the rest of us😃

Question 38.
A public health study compares the variability in BMI between two groups: Group A (mean BMI = 25, SD = 4) and Group B (mean BMI = 28, SD = 5). Which measure should be used to determine which group has greater relative variability?

4 months ago | [YT] | 7

Biostatistics for the rest of us😃

Question 37.
A health department wants to display the distribution of daily COVID-19 cases over a month. Which graphical method is best for showing the shape, central tendency, and dispersion of the data?

4 months ago | [YT] | 2

Biostatistics for the rest of us😃

Question 36.
A public health researcher is analyzing the serum cholesterol levels (mg/dL) of two populations: one urban and one rural. The urban group has a mean of 210 with a standard deviation of 30, while the rural group has a mean of 195 with a standard deviation of 25. Which group has relatively more variability in cholesterol levels?

4 months ago | [YT] | 3

Biostatistics for the rest of us😃

Question 35.
A public health agency collects data on the number of steps participants walk in a diabetes prevention program. The difference between the highest and lowest number of steps is called the:

4 months ago | [YT] | 1

Biostatistics for the rest of us😃

Question 34.
In a clinical trial, the researchers report the middle value of patient recovery times. What is this measure called?

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Biostatistics for the rest of us😃

Question 34
A biostatistics class is reviewing data on the number of COVID-19 cases reported per day in a city. The instructor asks which statistic describes how spread out the data are. Which of the following is correct?

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Biostatistics for the rest of us😃

Question 33
A hospital administrator wants to know the most common age group admitted for flu-related complications last winter. Which descriptive statistic should she use?

4 months ago | [YT] | 3

Biostatistics for the rest of us😃

Question 32
In a public health study, researchers measure the blood pressure of 100 adults. Which of the following is a measure of central tendency?

4 months ago | [YT] | 3