In how many ways can the letters of the word STATISTICS be arranged.
Q: What is the variance of a set of 6 numbers: 1, 2, 3, 4, 5, 6?
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Q: How many ways are there to rearrange the letters in the word STATISTICS?
A: We have given the word STATISTICS We have to find a number of ways are there to rearrange the…
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Q: It can be said that a sample is representative of the population. What is meant by this?
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Q: n your own word define the term statistics
A: Let S denote statistics.
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Q: What is the meaning of statistics in 4500- 5000 words
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Q: How do you calculate the variance of a set of numbers?
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- If a company has workers with a median salary of $25K, and supervisors of $42k, managers of $79.5k Executive with a median of $270K. Why we can't determine the median of all employees from the category medians?The class I'm taking is statistics! I am completely stuck. Need help. I have attached the problem. Please view both attachments before answering. Thank you!The salaries of the employees at four companies are summarized below. Answer the questions about them. Company A: The mean salary is $22,000 and the range of salaries is $47,000 .Company B: The mean salary is $14,000 and the range of salaries is $48,000 .Company C: The mean salary is $16,000 and the range of salaries is $46,000 .Company D: The mean salary is $19,000 and the range of salaries is $55,000 . (a) Based on the information above, which company's salaries have the most variability? Company A Company B Company C Company D (b) Based on the information above, which company has the highest salaries on average? Company A Company B Company C Company D
- How to find the variance of a set of numbersTask-1. A professor at a university is wishing to determine whether his introductory statistics class has a good grasp of basic math or not. For this purpose, he chooses six students from his class and gives them a math proficiency test. To have a good grip of basic maths, the professor wants the class score above 70 marks on the test. The scores that the sample of six students gets are 62, 92, 75, 68, 83, and 95. Can the professor say with 90% confidence that the mean score for the whole class on the test would be above 70?Explain Properties of the Sample Mean?
- Important: This question continues from the previous two questions and onto the following two questions. A Rasmussen Reports national survey of 1000 random adult Americans found that 6% felt that Saint Patrick's Day was one of our nation's most important holidays. From the previous question, input the calculated number of successes and number of failures. Show your work on your scratch paper. The number of successes is The number of failures is .Write your answer as a whole number. . Write your answer as a whole number.Example 7. In a batch of 25 students, 7 students failed in a test. The marks, of 18 students who passed were 36, 80, 48, 75, 79, 65, 82, 39, 57, 68, 38, 45, 81, 50, 37, 84, 66, 53. What was the median of all the 25 students.(4) Questions - 1. a. Define the following i. ii. iii. Statistics Population Quantitative data Qualitative data iv. b. Identify four uses of computer in statistics and discuss any twO.
- Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graphSuppose a researcher asked a random sample of students at the library on a Friday night, “How many hoursa week do you study?” in an attempt to estimate how much college students study. This method of datacollection is biased. Explain why.A guide for a "Pirates of the Caribbean" role-playing game lists the following percentages for the rarity items the players may collect when a "loot box" is opened. | Item rarity |Percentage Super rare 5% Rare 10% Uncommon 25% Common 60% Sarah thinks that the guide is wrong. To test her suspicions, she opens 80| loot boxes. Her results are shown in the table below Item rarity Frequency Super rare 3 Rare 4 Uncommon 24 Common 49 Total 80 a) Calculate the expected frequency for each item. b) How many degrees of freedom are there in this test? c) Conduct a Chi-Squared test with a 1% level of significance to determine whether Sarah's suspicions are justified. USE A CRITICAL VALUE to make your decision
