Answer: True
Explanation:
Inflation rate actual measures an increase in the consumer price index (CPI) which is based on average prices of various goods.
The goods which are considered under inflation are based on whether they fall under the prevalent consumption basket in that country.
The index therefore has various goods based on what goods that country consumes the most some goods are responsible for price increase whilst some for price decrease depending on how heavy does each good weigh on the overall consumption basket of that country.
A price index refers to an average price of particular good or services in a particular region at a certain period.
Answer:
dependent: exam score, independent: presence of music,
confounding can be the fact that students in no music condition completed exam as they normally would
high validity
Explanation:
Dependent variable is the variable whose value depends on independent varaible. As independent variable is changed, the value of dependent variable changes
Students in no music condition completed exam as they normally would can be confounding as no description is given about how they would noramlly complete an exam. Any other factor and not no music condition, in normal exam condition could have affected their scores.
The experiment has high validity as the exam scores of student exposed to music was significantly higher than those not exposed to the music. The results also proved the hypothesis.
Mathematics was the tool which scientists used to prove their theories and ideas. Mathematics was able to prove whether an idea a certain scientists had was correct or whether it was wrong. With this they wre able to advance the field very rapidly.
1.C
2.D
3.B
I'm in the eighth grade, so no biggie. Let me know if you need any more help.
