5. In a class of 78 students 41 are taking French, 22 are taking Swahili. Of the students taking French or Swahili, 9 are taking both courses. How many students are not enrolled in either course? A. 6 B. 15 C. 24 D. 33 E. 54
Answer: C In order to answer this question, add the number of students taking French and Swahili (41+22=63). Because 9 of those students are taking both classes, subtract 9 from that total to account for these students represented in each class (63-9=54). Now that you know how many students are taking a language class, you can subtract from the total number of students (78) from the total number of students taking a language class (54). Your calculation should give you 24.
Regionville is a community of 100,000 persons. During 1985 there were 1,000 deaths from all causes. All cases of tuberculosis have been found and they total 300 – 200 males and 100 females. During 1985, there were 60 deaths from tuberculosis, 50 of them males.What is the crude mortality rate for Regionville? 1. 300 per 100,000 2. 60 per 1,000 3. 10 per 1,000 4. 100 per 1,000 5. 200 per 1,000
10 per 1,000 The crude mortality rate it the death rate that is calculated using all deaths as the numerator and the total population as the denominator. Therefore Crude mortality rate = total deaths/total population = 1000/100,000 = 10 per 1,000 *Tip*: Don't get caught up with frivolous information. Crude mortality rate means just that: the mortality rate as the most basic level.
The Piagetian stage characterized by the ability to use symbols and words to think, intuitive problem-solving, but thinking limited by rigidity, centration, and egocentrism is called
A. Concrete Operational Stage Children at the concrete operational stage of development begin to reason more logically, but their thinking is still very rigid. They tend to struggle with abstract and hypothetical concepts. Kids at this stage start to understand that their thoughts are unique to them and that not everyone else necessarily shares their ideas, emotions, and opinions.