Straighterline Statistics Final Exam
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
anais is organizing her rock collection and places each rock in one of three
categories: small, medium, or large. this illustrates what level of
measurement? - 🧠ANSWER ✔✔ordinal
which of the following is an example of a nominal variable? - 🧠ANSWER
✔✔gender
what sort of data are temperature measurements? - 🧠ANSWER ✔✔ratio
based on the graph, which statement best describes the relationship
between daily high temperatures and the number of people going to the
beach? - 🧠ANSWER ✔✔it is negative linear relationship
, the table shows the number of train tickets carl purchased to each station
over the last month and the fare to each station. what was the average cost
per ride? - 🧠ANSWER ✔✔$5.45
the outcomes observes in an experiment are: 2, 8, 3, 10, 4, and 9. what is
the sample variance? - 🧠ANSWER ✔✔11.6
jason collects information about annual family income from each student at
his college. he computes both the mean and median family income across
all students and is surprised to find that the mean income is higher than the
median income. what is the most likely reason for the difference in the
mean and the median? - 🧠ANSWER ✔✔the mean is more affected by a
small number of extreme values
an instructor administers a test to a class of 30 students and observes that
the scores are close to normally distributed with a mean score of 40 and a
standard deviation of 10. what can you conclude from these results? -
🧠ANSWER ✔✔the average student scored at the 40th percentile
laura's quiz scores during the semester were 87, 82, 90, 92, and 84. what
was her mean score - 🧠ANSWER ✔✔87
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
anais is organizing her rock collection and places each rock in one of three
categories: small, medium, or large. this illustrates what level of
measurement? - 🧠ANSWER ✔✔ordinal
which of the following is an example of a nominal variable? - 🧠ANSWER
✔✔gender
what sort of data are temperature measurements? - 🧠ANSWER ✔✔ratio
based on the graph, which statement best describes the relationship
between daily high temperatures and the number of people going to the
beach? - 🧠ANSWER ✔✔it is negative linear relationship
, the table shows the number of train tickets carl purchased to each station
over the last month and the fare to each station. what was the average cost
per ride? - 🧠ANSWER ✔✔$5.45
the outcomes observes in an experiment are: 2, 8, 3, 10, 4, and 9. what is
the sample variance? - 🧠ANSWER ✔✔11.6
jason collects information about annual family income from each student at
his college. he computes both the mean and median family income across
all students and is surprised to find that the mean income is higher than the
median income. what is the most likely reason for the difference in the
mean and the median? - 🧠ANSWER ✔✔the mean is more affected by a
small number of extreme values
an instructor administers a test to a class of 30 students and observes that
the scores are close to normally distributed with a mean score of 40 and a
standard deviation of 10. what can you conclude from these results? -
🧠ANSWER ✔✔the average student scored at the 40th percentile
laura's quiz scores during the semester were 87, 82, 90, 92, and 84. what
was her mean score - 🧠ANSWER ✔✔87
