78.2% of students study more than one day for the chapter test. Find the probability that a randomly selected student did not study more than one day for the test.
The probability that a randomly selected student did not study more than one day for the test is equal to 1 minus the probability that a randomly selected student did study more than one day for the test.
We are given that 78.2% of students study more than one day for the test. Therefore, the probability that a randomly selected student did study more than one day for the test is 78.2% or 0.782.
The probability that a randomly selected student did not study more than one day for the test is 1 - 0.782 = 0.218.
So, the probability that a randomly selected student did not study more than one day for the test is 0.218 or 21.8%.
To find the probability that a randomly selected student did not study more than one day for the test, we need to subtract the given percentage from 100%.
Step 1: Subtract 78.2% from 100%.
100% - 78.2% = 21.8%
Step 2: Convert the percentage to a decimal by dividing it by 100.
21.8% รท 100 = 0.218
Therefore, the probability that a randomly selected student did not study more than one day for the test is 0.218 or 21.8%.
To find the probability that a randomly selected student did not study more than one day for the test, we need to subtract the percentage of students who studied more than one day from 100%.
Given that 78.2% of students studied more than one day, the percentage of students who did not study more than one day can be calculated as:
100% - 78.2% = 21.8%
Therefore, the probability that a randomly selected student did not study more than one day for the test is 21.8%.