MATH 225 – Statistical Reasoning for the Health Sciences, Year Two, Session One – 100 Practice
Questions with Answers. Guaranteed pass already graded A
1. What type of data is pulse oximetry classified as in health sciences?
• A) Qualitative nominal
• B) Quantitative continuous
• C) Qualitative ordinal
• D) Quantitative discrete
Answer: B
2. The mean of a data set is 50, and the standard deviation is 5. What is the
coefficient of variation?
• A) 10%
• B) 5%
• C) 50%
• D) 0.1
Answer: A
3. In a normal distribution, approximately what percentage of data falls within
one standard deviation of the mean?
• A) 50%
• B) 68%
• C) 95%
• D) 99%
Answer: B
,MATH 225 – Statistical Reasoning for the Health Sciences, Year Two, Session One – 100 Practice
Questions with Answers. Guaranteed pass already graded A
4. Which sampling method involves dividing the population into groups and
randomly sampling from each group?
• A) Systematic sampling
• B) Cluster sampling
• C) Stratified sampling
• D) Convenience sampling
Answer: C
5. The interquartile range (IQR) is:
• A) The difference between the maximum and minimum values
• B) The range of the middle 50% of data
• C) The average of the first and third quartiles
• D) The variance of the data set
Answer: B
6. Which measure of central tendency is most affected by extreme scores?
• A) Mean
• B) Median
• C) Mode
• D) Range
Answer: A
7. A p-value less than 0.05 in hypothesis testing indicates:
• A) Strong evidence against the null hypothesis
• B) Evidence supporting the null hypothesis
• C) No statistical significance
• D) The data is normally distributed
Answer: A
, MATH 225 – Statistical Reasoning for the Health Sciences, Year Two, Session One – 100 Practice
Questions with Answers. Guaranteed pass already graded A
8. The null hypothesis states that:
• A) There is an effect or difference
• B) The sample sizes are equal
• C) There is no effect or difference
• D) The alternative is false
Answer: C
9. Which type of graph best represents the relationship between two
quantitative variables?
• A) Pie chart
• B) Histogram
• C) Scatter plot
• D) Bar chart
Answer: C
10. What does a correlation coefficient of -0.85 indicate?
• A) Weak positive correlation
• B) Strong positive correlation
• C) Weak negative correlation
• D) Strong negative correlation
Answer: D
11. The probability of an event occurring is 0.3. What is the probability that
the event will not occur?
• A) 0.3
• B) 0.7
• C) 0.5
Questions with Answers. Guaranteed pass already graded A
1. What type of data is pulse oximetry classified as in health sciences?
• A) Qualitative nominal
• B) Quantitative continuous
• C) Qualitative ordinal
• D) Quantitative discrete
Answer: B
2. The mean of a data set is 50, and the standard deviation is 5. What is the
coefficient of variation?
• A) 10%
• B) 5%
• C) 50%
• D) 0.1
Answer: A
3. In a normal distribution, approximately what percentage of data falls within
one standard deviation of the mean?
• A) 50%
• B) 68%
• C) 95%
• D) 99%
Answer: B
,MATH 225 – Statistical Reasoning for the Health Sciences, Year Two, Session One – 100 Practice
Questions with Answers. Guaranteed pass already graded A
4. Which sampling method involves dividing the population into groups and
randomly sampling from each group?
• A) Systematic sampling
• B) Cluster sampling
• C) Stratified sampling
• D) Convenience sampling
Answer: C
5. The interquartile range (IQR) is:
• A) The difference between the maximum and minimum values
• B) The range of the middle 50% of data
• C) The average of the first and third quartiles
• D) The variance of the data set
Answer: B
6. Which measure of central tendency is most affected by extreme scores?
• A) Mean
• B) Median
• C) Mode
• D) Range
Answer: A
7. A p-value less than 0.05 in hypothesis testing indicates:
• A) Strong evidence against the null hypothesis
• B) Evidence supporting the null hypothesis
• C) No statistical significance
• D) The data is normally distributed
Answer: A
, MATH 225 – Statistical Reasoning for the Health Sciences, Year Two, Session One – 100 Practice
Questions with Answers. Guaranteed pass already graded A
8. The null hypothesis states that:
• A) There is an effect or difference
• B) The sample sizes are equal
• C) There is no effect or difference
• D) The alternative is false
Answer: C
9. Which type of graph best represents the relationship between two
quantitative variables?
• A) Pie chart
• B) Histogram
• C) Scatter plot
• D) Bar chart
Answer: C
10. What does a correlation coefficient of -0.85 indicate?
• A) Weak positive correlation
• B) Strong positive correlation
• C) Weak negative correlation
• D) Strong negative correlation
Answer: D
11. The probability of an event occurring is 0.3. What is the probability that
the event will not occur?
• A) 0.3
• B) 0.7
• C) 0.5
