Question

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

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