NAPLEX Biostatistics_notbyme Best Exam Questions with Complete Solution Newest Update 2024/2025
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NAPLEX Biostatistics_notbyme
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NAPLEX Biostatistics_notbyme
continuous data - ANS-values that continuously increase/decrease by same amount
types of continuous data - ANS-interval: has NO meaningful zero
ratio: has meaningful zero (0 = none)
types of discrete (categorical) data - ANS-nominal: arbitrary order
ordinal: ranked and has logical order
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NAPLEX Biostatistics_notbyme Best
Exam Questions with Complete Solution
Newest Update 2024/2025
continuous data - ANS-values that continuously increase/decrease by same amount
types of continuous data - ANS-interval: has NO meaningful zero
ratio: has meaningful zero (0 = none)
types of discrete (categorical) data - ANS-nominal: arbitrary order
ordinal: ranked and has logical order
Mean - ANS-The average value
central tendency - ANS-the typical value measurements that include mean, median, and
mode
Mean is the preferred measurement of central tendency for: - ANS-Continuous data that
is normally distributed
In statistics, what is meant by the mean of a group of values? - ANS-The average
calculated by dividing the sum of the values by the number of values
Median - ANS-The value in the middle when the values are arranged from lowest to
highest
median is preferred for - ANS-ordinal or continuous data that is skewed
When there are two center values with an even number of values for the median: -
ANS-Take the average of the two center values
,Mode - ANS-The value that occurs most frequently
Mode is preferred for - ANS-nominal data
Range - ANS-Difference between the highest and lowest values
Spread (variability) - ANS-How similar or how varied the values are in a set of data
The spread is described using: - ANS-the range and the standard deviation
If there are not outliers and the data are similar, the ____ value closely describes the
central tendency - ANS-Mean value
The distortion of the central tendency is caused by - ANS-Outliers is reduced by
collecting more values (as the number of values increased, the effect of outliers on the
mean decreases)
When the number of values is small, an outlier has a large impact on the mean: - ANS-
The median should better indicator of the central tendency --- the median is right in the
middle of the data and is not affected by outliers
Standard deviation - ANS-Indicated how spread out the data is, and to what degree the
data is dispersed away from the mean.( MEASURES VARIABILITY OF DATA AROUND
THE MEAN)
distortion of the central tendency caused by outliers is - ANS-decreased by collecting
more values
Data that is highly dispersed has: - ANS-A larger standard deviation
Gaussian distribution - ANS-Normal distribution
, When a distribution is normal, the curve is - ANS-symmetrical with most of the values
bunched around the middle
-Half of the values on the left side of the curve, and half of the values are on the right
side
The outliers (a small number of values) - ANS-Are the tails
The mean, median and mode are the same value - ANS-and are at the center point of
the curve
68% of the values fall within 1 SD of the mean: - ANS-95% of the values fall within 2
SDs of the mean
When you have more high values (the outliers are low values) - ANS-Data is skewed
towards the outliers= the left
When there is more high values in a distribution - ANS-Negative (left) skew
When you have more low values (the outliers are high values) - ANS-Data is skewed
towards the outliers= the right
When there is more low values in a distribution - ANS-Positive (right) skew
1 standard deviation away from the mean includes - ANS-68%
2 standard deviations away from the mean - ANS-95%
To show significance, the trial needs to demonstrate that the null hypothesis: - ANS-Can
be rejected & the alternate hypothesis can be accepted by reaching the significance
level
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