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WorksheetsBASIC STATS - MODULE 2
Total questions: 15
Worksheet time: 7mins
What is the mean score if five students in an English class scored 78, 85, 90, 92, and 95 on their final exams?
85
88
90
92
If the following are the scores of students in an English quiz: 75, 83, 88, 91, 93, what is the median score?
83
85
88
91
Which of the following best describes the mode?
The average score of a dataset.
The middle score when data is arranged in ascending order.
The most frequently occurring score in a dataset.
The difference between the highest and lowest scores in a dataset.
In a class of 10 students, the scores on a reading comprehension test are: 65, 70, 70, 75, 80, 85, 85, 85, 90, 95. What is the mode?
70
75
85
90
What is the range of scores if the highest score is 95 and the lowest score is 65 in an English exam?
25
30
35
40
Which statement best describes the standard deviation?
A measure of central tendency.
A measure of the spread of data points in a dataset.
The average of the squared differences from the mean.
The difference between the highest and lowest scores.
If the following are the scores of students in a vocabulary test: 55, 60, 65, 70, 85, 90, what is the range?
25
30
35
40
Which of the following best describes a bar chart?
A graph used to show the distribution of data.
A graph used to compare different categories of data.
A graph used to show the relationship between two variables.
A graph used to show the trend of data over time.
What is the primary difference between a bar chart and a histogram?
Bar charts are used for categorical data, while histograms are used for continuous data.
Bar charts display data in intervals, while histograms display individual data points.
Histograms have gaps between bars, while bar charts do not.
Histograms are used for time series data, while bar charts are not.
When analyzing the number of students who preferred different genres of English literature (e.g., fiction, non-fiction, poetry, drama), which type of graph would be most appropriate?
Histogram
Bar Chart
In a class of 30 students, the scores on a reading test are normally distributed with a mean of 80 and a standard deviation of 5. What percentage of students scored between 75 and 85?
Approximately 34%
Approximately 68%
Approximately 95%
Approximately 99.7%
If test scores in an English proficiency exam are normally distributed, what can you infer if a student’s score is 2 standard deviations above the mean?
The student scored below average.
The student scored exactly at the mean.
The student scored above approximately 68% of all students.
The student scored above approximately 95% of all students.
This chart depicts…
Normal distribution
Sknewness to the right
Sknewness to the left
This chart depicts…
Normal distribution
Sknewness to the right (positive skew)
Sknewness to the left (negative skew)
Sknewness to the right (negative skew)
This chart depicts…
Normal distribution
Sknewness to the right (positive skew)
Sknewness to the left (negative skew)
Sknewness to the left (positive skew)
