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Sta1501 Assignment 1 2024 solution
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Content preview
Part AQUESTION 1:
True.
QUESTION 2:
True.
QUESTION 3:
False. A population size is a discrete quantitative variable since it is countable.
QUESTION 4:
True. The rating scale "excellent, good, fair, poor" represents an ordinal qualitative variable where
there is a meaningful order but the difference between categories may not be equal.
QUESTION 5:
True. The province in which a person lives is a qualitative variable since it represents categories or
labels.
QUESTION 6:
True. Descriptive statistics involve methods to organize and summarize data.
QUESTION 7:
True. The cumulative frequency table lists the cumulative frequency for each class interval.
QUESTION 8:
False. The estimated value of 𝑦 when 𝑥=10 can be calculated as follows: 𝑦 = 3.68 + 4.20(10) = 3.68 +
42 = 45.68
QUESTION 9:
True. The median is the middle value when data is ordered, and it is also known as
the second quartile.
1
Q2: PQ = (15+ 1 ) th Term = 8th term, which is 2, also the number in the middle is 2.
2
2
QUESTION 10:
True.
Part B
Question 1
1. Stem-and-Leaf Plot:
Stem Leaf
1 34466789
2 111127
3 0333
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