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GRAAD 9 EBW KWARTAAL 2 JUNIE EKSAMEN   INSTRUKSIES:     Beantwoord AL die vrae in Canvas.     Afdeling C is ‘n PDF UPLOAD vraag.     Die antwoorde wat jy verskaf tot die vraestel moet jou eie oorspronklike werk wees.  Geen kopiëring vanaf enige bron sal toegelaat word nie.  Geen punte sal toegeken word vir werk wat gekopieër is nie.     Lees al die vrae noukeurig deur.     Gebruik die puntetoekenning as ‘n riglyn vir die hoeveelheid inligting wat vereis word in die antwoord.     Jy kan ‘n sakrekenaar gebruik indien nodig.        

3.9 Die Proefbalans toets die Rekenkundige vergelyking / Dubbelinskrywings-beginsel. (1)

3.7 Onttrekkings het ‘n debiet  / krediet saldo in die Proefbalans. (1)

An LPN is working with three clients.  One client is receiving IV push morphine for left should pain rated a 7 on a scale of 0-10; the second client has an order for oral digoxin (Lanoxin) and furosemide (Lasix) for heart failure; the third client is stable and has vitamins ordered to improve wound healing.  What task should the RN complete for the LPN?

A pizza delivery driver, always trying to increase tips, runs an experiment on his next 40 deliveries, all of which will be made on the same warm, sunny day. He flips a coin to decide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump in customer service will lead to a slight bump in tips. After 40 deliveries, he will compare the average tip percentage between the customers he called and those he did not. Name some variables the driver controlled.

A pizza delivery driver, always trying to increase tips, runs an experiment on his next 40 deliveries, all of which will be made on the same warm, sunny day. He flips a coin to decide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump in customer service will lead to a slight bump in tips. After 40 deliveries, he will compare the average tip percentage between the customers he called and those he did not. Was the experiment replicated?

For his Statistic class experiment, researcher J. Gilbert decided to study how parents’ income affects children’s performance on standardized tests like SAT. He proposed to collect information from a random sample of test takers and examine the relationship between parental income and SAT score. Is this an experiment? If not, what kind of study is it?

Administrators at a university were interested in estimating the percentage of students who are the first in their family to go to college. The university student body has about 47,000 members. The university administration is considering a variety of ways to sample students for a survey. Identify the problem of: setting up a table in the student union and ask students to stop and answer a survey

The life span of a calculator battery is normally distributed with a mean of 55 hours and a standard deviation of 5 hours. What is the probability that  a battery lasts more than 64 hours? (round to three decimal places)

A pizza delivery driver, always trying to increase tips, runs an experiment on his next 40 deliveries, all of which will be made on the same warm, sunny day. He flips a coin to decide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump in customer service will lead to a slight bump in tips. After 40 deliveries, he will compare the average tip percentage between the customers he called and those he did not. Was the experiment randomized?