The experimental probability the placebo pill induced better concentration on the student exams is 0.64
The question has to do with probability.
<h3>What is probability?</h3>
Probability is the likelihood of an event occurring.
The probability of an event A is given by
P(A) = number of occurrences of event A/total number of occurrences of all events.
<h3>What is the experimental probability the placebo pill induced better concentration on the student exams?</h3>
Given that in the study on the placebo effect on 100 students, 64 were found to perform better on tests after taking a fake pill to improve concentration.
The event A = students performing better.
Since 64 students performed better, the number of occurrences of event A = 64.
Since there were 100 students, the total number of occurrences = 100.
So, P(A) = P(students perform better)
= number of occurrences of event A/total number of occurrences of all events.
= 64/100
= 0.64
So, the experimental probability the placebo pill induced better concentration on the student exams is 0.64
Learn more about probability here:
brainly.com/question/25839839
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