STA1610
EXAM
PACK
2024
LATEST EXAM PACK QUESTIONS
AND ANSWERS AND SUMMARIZED
NOTES FOR EXAM PREPARATIONS.
UPDATED FOR 2024 EXAMS.
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2 STA1610
MAY/JUNE 2019
QUESTION 1
Consider the following variables
A Human blood types
B Household size collected by Census Bureau
C Soccer player height
D Ethmcity
E Number of students
Which one represents a nommal variable?
A and D
2 A, Band D
3 B, C and E
4 A, B, C and E
5 Only D
QUESTION 2
Which one of the followmg statements is correct?
Four different beverages (soft drmks, tea, coffee and bottled water) are sold at a fast food restaurant rs a
ordinal vanable
2 South Afnca businesses are listed by size small, medium and large IS an nommal vanable
3 The time it takes to download a video from the mtemet rs a discrete vanable
4 Whether the cellphone owned m the household is a smartphone represents a quahtative variable
5 Distance (m km) from a person's house to the nearest store rs a quahtanve variable
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3 STAl610
MAY/JUNE 2019
QUESTION 3
For this year, a random sample of 500 mcommg college freshmen yielded the followmg frequency distnbuuon for
pohtical views
Pohtical View ANC DA EFF
Frequency 160 246 94
The relative frequency of DA rs
500
2 0 492
3 246
4 406
5 160
QUESTION 4
The stem-and-leaf diagram for the days-to-maturity data ts shown below
3 6 8 9
4 7
5 0 l l 3 5 5 6 7
6 0 2 3 4 4 5 6 7 8
7 0 0 0 1 5 8 9
8 0 3 5 6
Which one of the followmg statements is correct?
The range is O
2 The fifth largest value rs 50
3 There are 32 numbers
4 The mode is O and 5
5 The median is 64
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4 STAl610
MAY/JUNE 2019
QUESTION 5
Consider the data set 1, 2, 3, 4, 5, 6, 7, 8, 99, which measure ot central tendency is affected by the outlier?
The mean
2 The median
3 The mode
4 The standard deviation
5 The sample vanance
QUESTION 6
The distnbution of the following data
4, 2, 0, 2, 2 lS
symmetric
2 posrtively skewed
3 negatively skewed
4 binomial
5 Poisson
QUESTION 7
Consider a simple data set 1, 2, 3, 4, 5, 6 which one of the following statements is correct?
The position of the first quartile Q1 is 2 5
2 The value of the second quartile Q 2 is 3
3 The median is 4
4 The value of the third quartile Q 3 is 5 25
5 The interquartile range is 3
[TURN OVER]
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EXAM
PACK
2024
LATEST EXAM PACK QUESTIONS
AND ANSWERS AND SUMMARIZED
NOTES FOR EXAM PREPARATIONS.
UPDATED FOR 2024 EXAMS.
, Stuvia.com - The study-notes marketplace
2 STA1610
MAY/JUNE 2019
QUESTION 1
Consider the following variables
A Human blood types
B Household size collected by Census Bureau
C Soccer player height
D Ethmcity
E Number of students
Which one represents a nommal variable?
A and D
2 A, Band D
3 B, C and E
4 A, B, C and E
5 Only D
QUESTION 2
Which one of the followmg statements is correct?
Four different beverages (soft drmks, tea, coffee and bottled water) are sold at a fast food restaurant rs a
ordinal vanable
2 South Afnca businesses are listed by size small, medium and large IS an nommal vanable
3 The time it takes to download a video from the mtemet rs a discrete vanable
4 Whether the cellphone owned m the household is a smartphone represents a quahtative variable
5 Distance (m km) from a person's house to the nearest store rs a quahtanve variable
[TURN OVER)
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3 STAl610
MAY/JUNE 2019
QUESTION 3
For this year, a random sample of 500 mcommg college freshmen yielded the followmg frequency distnbuuon for
pohtical views
Pohtical View ANC DA EFF
Frequency 160 246 94
The relative frequency of DA rs
500
2 0 492
3 246
4 406
5 160
QUESTION 4
The stem-and-leaf diagram for the days-to-maturity data ts shown below
3 6 8 9
4 7
5 0 l l 3 5 5 6 7
6 0 2 3 4 4 5 6 7 8
7 0 0 0 1 5 8 9
8 0 3 5 6
Which one of the followmg statements is correct?
The range is O
2 The fifth largest value rs 50
3 There are 32 numbers
4 The mode is O and 5
5 The median is 64
[TURN OVER]
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4 STAl610
MAY/JUNE 2019
QUESTION 5
Consider the data set 1, 2, 3, 4, 5, 6, 7, 8, 99, which measure ot central tendency is affected by the outlier?
The mean
2 The median
3 The mode
4 The standard deviation
5 The sample vanance
QUESTION 6
The distnbution of the following data
4, 2, 0, 2, 2 lS
symmetric
2 posrtively skewed
3 negatively skewed
4 binomial
5 Poisson
QUESTION 7
Consider a simple data set 1, 2, 3, 4, 5, 6 which one of the following statements is correct?
The position of the first quartile Q1 is 2 5
2 The value of the second quartile Q 2 is 3
3 The median is 4
4 The value of the third quartile Q 3 is 5 25
5 The interquartile range is 3
[TURN OVER]
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