When the general level of prices goes down, we call that:
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What would likely happen if a country imposed or increased a…
What would likely happen if a country imposed or increased a tariff on cars imported from other countries?
In macroeconomics, _____________________ denotes the relatio…
In macroeconomics, _____________________ denotes the relationship between the total quantity of goods and services demanded and the price level for output.
What does GDP consist of when we add up what’s demanded (pur…
What does GDP consist of when we add up what’s demanded (purchased) in an economy?
A study is examining individuals’ health habits. Each indivi…
A study is examining individuals’ health habits. Each individuals’ BMI category and physical activity level is recorded. Results are summarized in the two-way table below. BMI Category Low Activity Moderate Activity High Activity Total Underweight 12 18 31 61 Healthy 25 60 94 179 Overweight 50 45 34 129 Obese 65 30 16 111 Total 152 153 175 480 Use the table to determine the probabilities below. Enter your answers as fractions. Do not simplify. What is the probability an individual from the study selected at random is overweight?[an]/[ad] What is the probability an individual from the study selected at random is low activity and obese?[bn]/[bd] What is the probability an individual from the study selected at random is moderate activity or healthy weight?[cn]/[cd] What is the probability an individual from the study with low activity selected at random is underweight?[dn]/[dd]
Ricky asks 8 friends how much they spent on lunch today. Her…
Ricky asks 8 friends how much they spent on lunch today. Here are their responses: $5.75, $6.95, $8.50, $8.80, $9.14, $10.15, $12.40, $15.75 Determine each of the following, rounding to two decimal places. mean = $[a] median = $[b] standard deviation = $[c] IQR = $[d]
The estimated blood type distribution in the United States i…
The estimated blood type distribution in the United States is shown below. Blood Type O+ O- A+ A- B+ B- AB+ AB- Percentage 37.4% 6.6% 35.7% 6.3% 8.5% 1.5% 3.4% 0.6% Suppose one person from the US is selected at random. What is the probability the individual has an AB blood type? (Enter your answer as a decimal.)
A study was conducted to examine the relationship between co…
A study was conducted to examine the relationship between college students’ GPA and the following variables: hours of sleep per night, major, caffeine consumption (cups per day), and whether the student lives on campus. Select all of the quantitative variables in this study.
Mr. Lopez, a college advisor, is helping the university esti…
Mr. Lopez, a college advisor, is helping the university estimate the percentage of first-year students who take any online courses during their first semester. At the university, there are 950 first-year students enrolled. 370 of these students are registered for at least one online class. Identify the variable being recorded about the individuals in this scenario.
In cognitive psychology experiments, researchers often measu…
In cognitive psychology experiments, researchers often measure reaction time—how long it takes a person to respond to a stimulus (like pressing a button when a light appears). In a simple reaction task, reaction times were normally distributed with a mean of 225 milliseconds (ms) and standard deviation of 25 ms. Approximately [a]% of people that complete this reaction task will have a reaction time between 175 and 275 ms. Approximately 68% of people that complete this reaction task will have a reaction time between [b1] and [b2] ms.