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Biostatistics_1

Total questions: 32

Worksheet time: 11mins

Name
Class
Date
1.

Statistics which studies the issues related to the development and use of statistical methods in biology, medicine, pharmacy, hygiene and health care, is called:

a)

social statistics

b)

population health statistics

c)

biostatistics

d)

medical statistics

e)

health system statistics

2.

The scale that is used to classify the properties of an object:

a)

non-comparative

b)

ratio

c)

nominal

d)

interval

e)

ordinal

3.

The scale in which the numbers are assigned to the objects to determine the relative extent to which certain characteristic is possessed:

a)

ordinal

b)

interval

c)

nominal

d)

ratio

e)

non-comparative

4.

The scale that shows the "range" of individual measurements of the attribute:

a)

ordinal

b)

ratio

c)

non-comparative

d)

nominal

e)

interval

5.

The scale that shows the ratio of the measured values of the attribute:

a)

ratio

b)

non-comparative

c)

ordinal

d)

nominal

e)

interval

6.

The random variable that takes separate from each other numeric values is called:

a)

nominal

b)

constant

c)

continuous

d)

discrete

e)

interval

7.

A random variable that takes all values from a certain interval is called:

a)

continuous

b)

constant

c)

discrete

d)

interval

e)

nominal

8.

The number of students at the lecture is:

a)

nominal variable

b)

interval variable

c)

constant

d)

discrete variable

e)

continuous variable

9.

The number of patients admitted per day is:

a)

nominal variable

b)

interval variable

c)

constant

d)

continuous variable

e)

discrete variable

10.

Body weight is:

a)

nominal variable

b)

continuous variable

c)

discrete variable

d)

interval variable

e)

constant

11.

Height is:

a)

discrete variable

b)

nominal variable

c)

constant

d)

continuous variable

e)

interval variable

12.

Blood pH is:

a)

discrete variable

b)

nominal variable

c)

interval variable

d)

constant

e)

continuous variable

13.

Brain volume is:

a)

interval variable

b)

nominal variable

c)

continuous variable

d)

discrete variable

e)

constant

14.

Gender is:

a)

nominal variable

b)

discrete variable

c)

constant

d)

interval variable

e)

continuous variable

15.

Nationality is:

a)

continuous variable

b)

interval variable

c)

nominal variable

d)

discrete variable

e)

constant

16.

A table that displays the frequency of various results in a sample:

a)

sample

b)

ordered array

c)

population

d)

frequency distribution

e)

random variable

17.

A number that shows how many times the observation occurs in the sample:

a)

quantile

b)

median

c)

frequency

d)

mode

e)

variance

18.

The number of intervals is calculated via the formula:

a)

k=2+2,322lg(n)

b)

k=1+3,322lg(n)

c)

h=(xmax-xmin)/k

d)

k=1+3,322∙n

e)

x1=xmin-0,5∙h

19.

The width of the interval is calculated via the formula:

a)

k=2+2,322lg(n)

b)

k=1+3,322lg(n)

c)

h=(xmax-xmin)/k

d)

k=1+3,322∙n

e)

x1=xmin-0,5∙h

20.

Determine the number of intervals for a given frequency distribution:

a)

50

b)

1

c)

6

d)

12,5

e)

17

21.

Determine the width of the intervals for a given frequency distribution:

a)

6

b)

1

c)

50

d)

12,5

e)

17

22.

Determine the sample size for a given frequency distribution:

a)

6

b)

1

c)

12,5

d)

17

e)

50

23.

Determine the lower limit of the first interval for a given frequency distribution:

a)

50

b)

6

c)

1

d)

12,5

e)

18,5

24.

Determine the range for a given frequency distribution:

a)

50

b)

1

c)

12,5

d)

6

e)

17

25.

Determine the number of intervals for a given frequency distribution:

a)

45

b)

5

c)

7

d)

35

e)

15

26.

Determine the width of the intervals for a given frequency distribution:

a)

45

b)

5

c)

7

d)

35

e)

10

27.

Determine the sample size for a given frequency distribution:

a)

35

b)

45

c)

7

d)

5

e)

15

28.

Determine the lower limit of the first interval for a given frequency distribution:

a)

5

b)

15

c)

7

d)

35

e)

45

29.

Determine the range for a given frequency distribution:

a)

7

b)

5

c)

45

d)

35

e)

15

30.

The picture shows:

a)

line plot

b)

pie chart

c)

in-column chart

d)

box and whiskers plot

e)

stem and leaf plot

31.

The picture shows:

a)

stem and leaf plot

b)

histogram

c)

pie chart

d)

line plot

e)

box and whiskers plot

32.

The picture shows:

a)

histogram

b)

pie chart

c)

polygon

d)

box and whiskers plot

e)

stem and leaf plot

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