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Can someone help me answer this 2 tasks? These are the examples. I just don't know how to answer this myself. 1. Classify the following
Can someone help me answer this 2 tasks? These are the examples. I just don't know how to answer this myself.
1. Classify the following random variables as discrete or continuous. VARIABLES TYPES OF VARIABLES TYPES OF QUANTITATIVE VARIABLES 1. The number of defective computers produced by a manufacturer e rar 2. The weight of newborns each year in a hospital 3. The number of siblings in a family of a sio region at 4. Dosage of medicine 5. Family size 6. Body temperature 7. The number of voters favoring a candidate 8. The number of patients arrivals per hour at medical clinic 9. The time needed to finish the test 10. The number of female athletes11. Four coins are tossed. Let Z be the random variable representing the number of heads occur. Find the values of the random variable Z. Possible Outcomes Value of the Random Variable Z Br JO AQExample 1: Suppose three coins are tossed. Let Y be the random variable representing the number of tails that occur. Find the values of the random variable Y. Solution: Steps Solution 1. Determine the sample space. Let H represent The sample space for this experiment is: head and T represent tail. S = {TTT, TTH, THT, HTT, HHT, HTH, THH, HHH 2. Count the number if tails in each outcome in Possible Outcomes Value of the Random the sample space and assign this number to this Variable Y (Number of outcome. tails) TTT 3 TTH 2 THT 2 HTT 2 HHT HTH o - -- THH HHHExample 2: Two balls are drawn in succession without replacement from the urn containing 5 red balls and 6 blue balls. Let Z be the random variable representing the number of blue balls. Find the values of the random variable Z. Solution: Steps Solution 1. Determine the sample space. Let B represent The sample space for this experiment is: blue and R represent red. S = {RR, RB, BR, BB} 2. Count the number of balls in each outcome in Possible Outcomes Value of the Random the sample space and assign this number to this Variable Z (number of outcome. blue balls) RR O RB - BR BB 2 So, the possible values of the random variable Z are 0, 1 and 2.TYPES OF VARIABLES 1. Qualitative Variables Qualitative variable express a categorical attribute, such as sex (male marital status, region of residence, highest educational attainment. 2. Quantitative Variables Quantitative variable (otherwise called numerical) data, whose sizes are meaningful, answer questions such as "how much" or "how many". Quantitative variables have actual units of measure Examples of quantitative variables include the height, weight, number of registered cars, household size, and total household expenditures/income of survey respondents. Quantitative data may be further classified into: Discrete random variable and continuous variable. Example 3: Identify the following variable is qualitative or quantitative. If quantitative, classify them as discrete or continuous variable. Variable Types of Variables Types of Quantitative Variable 1. The number of family members working Quantitative Discrete variable 2. Ownership of a cellphone among family Qualitative members 3. Length (in minutes) of longest call made on each | Quantitative Continuous Variable cellphone owned per month 4. Amount spent in pesos on food in one week Quantitative Discrete variable 5. Occupation household head Qualitative 6. Total family income Quantitative Discrete variable 7. Amount of time last week spent by each family Quantitative member using the internet Continuous VariableStep by Step Solution
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