Mathematics, 19.03.2021 18:20, shaylarreyes

Myopia in children. Myopia, also called short-sightedness, is a common visual impairment that is reaching alarming proportions worldwide. The condition typically develops in school-age children and adolescents. It has long been thought that the condition was associated with too much reading, but recent evidence suggests instead that a lack of exposure to natural outdoor light may play a role. To investigate this new theory, researchers compared rates of myopia among randomly selected young children (6 and 7 years old) of Chinese ethnicity living in either Sydney (Australia) or Singapore. The researchers found that 4 of the 124 children in the Australian sample had myopia, compared with 183 among the 628 children from Singapore Required:
a. Display the findings in a two-way table. What percent of the children in the study had myopia?
b. What is that percent among the children living in Australia and among those living in Singapore?

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, nefertitihorne12

Me asap! what is the slope of this line? enter your answer in the box.

Answers: 2

continue

Mathematics, 21.06.2019 19:20, gameranonymous266

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long. at what angle is the sun above the horizon at that time?

Answers: 1

continue

Mathematics, 21.06.2019 20:00, aheadrick5163

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Answers: 2

continue

Mathematics, 21.06.2019 21:20, aaronroberson4940

Find the least common denominator for thesetvo rational expressions. n^2/n^2+4n+4 -3/n^2+7n+10

Answers: 2

continue

Do you know the correct answer?

Myopia in children. Myopia, also called short-sightedness, is a common visual impairment that is rea...