Answer:
Following options are both quantitative and continuous.
1. The amount of tar in a cigarette, measured in milligrams (mg).
3. The time it takes in minutes for a student to walk from the parking lot to their classroom.
Explanation:
Quantitative variables are the numerical variables which can be measured. For example, population of a city.
Continuous variables are also numeric but it have any number of values between its minimum and maximum value. Like in statistics we have age, height, color of eye etc as continuous variables.
In the given options, Option 1, amount of tar cigarette, is both quantitative and continuous as it have numeric value between any two values.
3. Time is measured and can range between any two values (to walk from parking area to classroom) so it is both quantitative and continuous.
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The correct answer is number 2. Ambivalence.
Ambivalence refers to the state of having mixed feelings or different ideas about something or a person. In the given situation, Brian had the feeling of ambivalence, since a passerby had smiled on him, which possibly made him think about different ideas that the person may like him or knows him.
Positive correlation happens when higher values of a variable are associated with higher values of the other variable. So, if two variables are positively correlated, an increase in one variable would imply that the other should also increase. The scatter diagram of positively correlated variables consists of points nearly lying on a positively sloped line
(hindi) सकारात्मक संबंध तब होता है जब एक चर के उच्च मूल्य अन्य चर के उच्च मूल्यों से जुड़े होते हैं। इसलिए, यदि दो चर सकारात्मक संबंधित होते हैं, तो एक चर में वृद्धि का अर्थ होता है कि दूसरे को भी बढ़ाना चाहिए। सकारात्मक सहसंबंधित चर के स्कैटर आरेख में एक सकारात्मक स्लॉप्ड लाइन पर झूठ बोलने वाले बिंदु होते हैं
