A.Find the expected number of cars that Ahmed will sell next week. Show your work. b.Find the variance of the number of cars that Ahmed will sell next week. Show your work.
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A.Find the expected number of cars that Ahmed will sell next week. Show your work.
b.Find the variance of the number of cars that Ahmed will sell next week. Show your work.
Given that, Ahmed sells cars for a dealership. He estimated the probabilities for the number of cars (X) that he will sell in the next week.
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- Answer 3,4,5Four students take tests. The results of each test for the class and the student are listed in the choice. Which student has the highest Z Score? a.John who scored an 85 and whose class averages 77 with a standard deviation of 4. b.Tammy who scored an 86 and whose class averages 82 with a standard deviation of 3. c.Rob who scored an 87 and whose class averages 73 with a standard deviation of 11. d.Sandra who scored a 90 and whose class averaged an 81 with a standard deviation of 7.Can you find a set of data such that the mean, median, and variance are all equal to each other? Find as many data sets as possible. If none are possible, explain why. If many are possible explain why. If you find any patterns explain what they are and how they are useful in the hunt for understanding this question.
- Answer the Ff.The cumulative frequency below displays the amount of time (in minutes) taken to travel to work by employees at a shoe factory. 100 80 60- Cumulative frequency 40 20 10 30 40 Time (minutes) 20 50 60 70 80 90You want to know if male green darner dragonflies (Anax junius) are territorial so you collect data on how many dragonflies you find per square meter of shoreline around a 15 hectare pond. You collect data from 24 random square meter plots and count the number of male green darners in each plot. The data from each plot is below. Using the equation in the lab instructions, what is the Variance to Mean ratio? number of male green darners/square meter 8. 7 6. 6. 6. 7. 8 8. 81 8. 7 7 8. 6. Answer: 0.12
- Determine whether the statement is true or false. If it is false, rewrite it as a true statement. As the size of a sample increases, the mean of the distribution of sample means increases. Choose the correct answer below. O A. False. As the size of a sample increases, the mean of the distribution of sample means decreases. B. False. As the size of a sample increases, the mean of the distribution of sample means does not change. O C. True.Karen has an economics final next week. Find the mean of the following list of hours she studied for the final in the last few days. 1,5,7,4,1,4It is possible for the value of the median to be greater that the value of the mode. a. True b. False
- DIRECTION: Read and answer the following questions. Write the letter of your choice on the spaces provided before each number. (Remembering) 1. The frequency distribution of sample means taken from a population. A. sampling distribution of sample means B. mean C. variance D. histogram 2. It is also called the expected value. A. sampling distribution of sample means B. mean C. variance D. histogram 3. It states that the sampling distribution of the mean approaches a normal distribution as the sample size increases. A. Central Limit Theorem B. standard error of the mean C. normal distribution D. sample size 4. The population is spread perfectly symmetrical with standard deviations around the mean value. A. population B. Central Limit Theorem C. sample size D. normal distribution えー! 5. In the formula Z = represents : Vn A. sample mean B. variable C. population mean D. standard deviation 6. It is the standard deviation of the sampling distribution of the sample mean. "B. standard…Solve the following and get the range and variance with the data 25,27,30,32,32,40,45,46,47,48need help with this please!