you are allowed two attempts at this quiz. the highest score will be kept. this quiz covers chapters 12…
you are allowed two attempts at this quiz. the highest score will be kept. this quiz covers chapters 12. question 1 1 pts ch 12 you randomly select 500 students and observe that 55 of them are left - handed. estimate the probability that a randomly selected student is right - handed. 0.11 1.123 0.50 0.89
Answer
Explanation:
Step1: Calculate probability of left - handed
The probability of a student being left - handed is calculated by the formula $P(\text{left - handed})=\frac{\text{number of left - handed students}}{\text{total number of students}}$. So, $P(\text{left - handed})=\frac{55}{500}= 0.11$.
Step2: Calculate probability of right - handed
Since a student is either right - handed or left - handed, and the sum of probabilities of all possible outcomes is 1. Let $P(\text{right - handed})$ be the probability of a student being right - handed. Then $P(\text{right - handed})=1 - P(\text{left - handed})$. Substituting the value of $P(\text{left - handed}) = 0.11$, we get $P(\text{right - handed})=1 - 0.11=0.89$.
Answer:
0.89