Question

initial knowledge check question 7 anagram puzzles involve sets of scrambled letters that must be rearranged to form words. a standard intelligence test employs these puzzles as an aid in assessing verbal ability. the histogram below summarizes information about the time for completion (in seconds) for each of 25 students given the anagram test. based on the histogram, find the proportion of times for completion in the sample that are greater than or equal to 1300 seconds. write your answer as a decimal, and do not round your answer.

Explanation:

Step1: Identify relevant frequency

The frequency for times ≥1300 seconds is 3.

Step2: Identify total sample size

Total number of students is 25.

Step3: Calculate the proportion

Divide relevant frequency by total size.
$\frac{3}{25}$

Answer:

0.12