Kaylee read a report that said the probability that a randomly selected American is left-handed is 14\%14%14, percent. She was curious how many left-handed students to expect in a class of 252525 students.
She simulated 404040 classes of 252525 students where each student selected had a 0.140.140, point, 14 probability of being left-handed.
Kaylee counted how many left-handed students were in each simulated class. Here are her results:
Answers
Answer:
5/25
Step-by-step explanation:
I got it correct. Trust me
The probability that there are fewer than 3 left handed students in a class is 0.2.
Given:
Total number of students in one class = 25
Total number of classes sampled = 40
Distribution of the number of left hand students in each class as shown in the figure below
To find:
we need to find the probability that there are fewer than 3 left handed students in a class
Solution:
Now, we know that probability = Number of favorable outcomes/ total number of outcomes
From, the figure below, 1 class has 0 left handed students and 7 classes have 2 left handed students
Thus, the number of classes in which fewer than three students are left handed = 8
Hence, probability = 8/40
= 1/5
= 0.2
Hence, the probability that there are fewer than 3 left handed students in a class is 0.2.
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