Question

in one math class, the first exam had an average score of 63.1% with a standard deviation of 11.2%. the second exam had a mean score of 61.3%, with a standard deviation of 20.9%.
based on these numbers, tell whether each statement is true or false.
part 1 of 6
(a) there were probably some students that took a zero on exam i.
the statement is
correct answer
the statement is false.
part: 1 / 6
part 2 of 6
(b) even though the means were similar, the spread of the scores was wider on the second exam.
the statement is

Explanation:

Step1: Analyze the spread of scores

Standard deviation measures the spread of data. A larger standard deviation means a wider spread.
The standard deviation of the first exam is \(11.2\%\) and of the second exam is \(20.9\%\).
Since \(20.9>11.2\)

Answer:

The statement is true.