Measurement, Errors, Data and Unit Conversion
What can be correctly said of data that are “normally distributed”?
The upper and lower values of the distribution describe the healthy range of physiological values.
The standard deviation characterises the dispersion of data, and the variance characterises the central tendency of the data.
The mean and range are statistics that are strictly only applicable to normally distributed data.
Sixty-eight percent of all data values will be within one standard deviation from the mean.
Sixty-eight percent of all data values will be within one standard deviation from the mean.
Normally distributed data have this predicable relationship between their mean and the spread of values around the mean.
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Given that 1 mmHg = 0.133 kPa, how can a systolic BP measurement of 120 mmHg be converted to a measurement in kPa?A. Divide 120 by 0.133
B. Multiply 120 by 0.133
C. Divide 0.133 by 120
D. Add 0.133โ120
How many micrograms are there in 0.25 g?
A. 250
B. 25,000
C. 250,000
D. 25,000,000
What is meant when a person’s mass is stated as 73.6 kg? That:
A. The mass is closer to 73.6 than it is to 73.7 or 73.5.
B. The mass is closer to 73.6 than to any other value.
C. The mass is between 73.5 and 73.7.
D. The mass is 73.6 ยฑ0.1 kg.
How many milligrams are there in 1 ฮผg?
A. 0.001
B. 1000
C. 0.1
D. 1000 000
How many micrograms are there in 1 mg?
A. 0.001
B. 0.1
C. 100
D. 1000
What is the result of converting 650 ฮผg to mg?
A. 0.650
B. 6.50
C. 65
D. 65,000
What is 1.25 g converted to micrograms?
A. 125
B. 1250
C. 12,500
D. 1,250,000
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