PSTAT 5LS Midterm 1 2025/2026 Exam
Questions and Correct Answers | New
Update
Data - 🧠 ANSWER ✔✔collection of observations
How to chart categorical data - 🧠 ANSWER ✔✔bar graphs and pie charts
How to chart quantitative data - 🧠 ANSWER ✔✔histograms dotplots,
stemplots
Two types of data - 🧠 ANSWER ✔✔categorical (qualitative) and
quantitative
Statistics - 🧠 ANSWER ✔✔the science of data
Population - 🧠 ANSWER ✔✔complete collection of all individuals (scores,
people, measurements, etc.) to be studied
Sample - 🧠 ANSWER ✔✔group of members selected from a population
Parameter - 🧠 ANSWER ✔✔a numerical measurement describing some
characteristic of a population
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, Population - 🧠 ANSWER ✔✔-----> parameter
Statistic - 🧠 ANSWER ✔✔a numerical measurement describing some
characteristic of a sample
Sample - 🧠 ANSWER ✔✔-----> statistic
Individuals - 🧠 ANSWER ✔✔the objects described by a set of data , may be
people, animals, or things
Variable - 🧠 ANSWER ✔✔any characteristic of an individual, can take
different values for different individuals
Outlier - 🧠 ANSWER ✔✔observations that lie outside the overall pattern of
a distribution
How to make a stem plot - 🧠 ANSWER ✔✔separate each observation into
a stem, consisting of all except the rightmost digit, and a leaf, which is that
remaining final digit. Write stems in a vertical column with the smallest
value at the top and draw a vertical line at the right of this column, then
write each leaf in the row to the right of its stem, in increasing order out
from the stem
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
Questions and Correct Answers | New
Update
Data - 🧠 ANSWER ✔✔collection of observations
How to chart categorical data - 🧠 ANSWER ✔✔bar graphs and pie charts
How to chart quantitative data - 🧠 ANSWER ✔✔histograms dotplots,
stemplots
Two types of data - 🧠 ANSWER ✔✔categorical (qualitative) and
quantitative
Statistics - 🧠 ANSWER ✔✔the science of data
Population - 🧠 ANSWER ✔✔complete collection of all individuals (scores,
people, measurements, etc.) to be studied
Sample - 🧠 ANSWER ✔✔group of members selected from a population
Parameter - 🧠 ANSWER ✔✔a numerical measurement describing some
characteristic of a population
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, Population - 🧠 ANSWER ✔✔-----> parameter
Statistic - 🧠 ANSWER ✔✔a numerical measurement describing some
characteristic of a sample
Sample - 🧠 ANSWER ✔✔-----> statistic
Individuals - 🧠 ANSWER ✔✔the objects described by a set of data , may be
people, animals, or things
Variable - 🧠 ANSWER ✔✔any characteristic of an individual, can take
different values for different individuals
Outlier - 🧠 ANSWER ✔✔observations that lie outside the overall pattern of
a distribution
How to make a stem plot - 🧠 ANSWER ✔✔separate each observation into
a stem, consisting of all except the rightmost digit, and a leaf, which is that
remaining final digit. Write stems in a vertical column with the smallest
value at the top and draw a vertical line at the right of this column, then
write each leaf in the row to the right of its stem, in increasing order out
from the stem
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
