Answer: Our required probability is 20%.
Step-by-step explanation:
Since we have given that
Probability of the employees needed corrective shoes = 8%
Probability of the employees needed major dental work = 15%
Probability of employees needed both corrective shoes and major dental work = 3%
So, we need to find the probability that an employee will need either corrective shoes or major dental work.
So, it becomes,
[tex]P(S\cup D)=P(S)+P(D)-P(S\cap D)\\\\P(S\cup D)=8+15-3\\\\P(S\cup D)=23-3\\\\P(S\cup D)=20\%[/tex]
Hence, our required probability is 20%.
Eight-year-old Terry's performance on an intelligence test is at a level characteristic of an average 5-year-old. In other words, Terry was average for his age group. Which of the following is most likely Terry’s IQ score?
6
4
5
8
Answer:
5
Step-by-step explanation:
Assuming the intelligence test had 10 questions, since Terry was average for his age group, his most likely IQ score is 5