3.3-2. If Z is N(0, 1), find (a) P(0 ≤ Z≤ 0.78). (c) P(-2.31 ≤ Z-0.65). (b) P(-2.46 ≤ Z≤ 0). (d) P(|Z| > 1.93).
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Need help with this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.
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- Solve this question with steps please. The subject is basic probability and statistics. Math 105I have a random math question. Let's suppose that you were to have a 100 gallon barrel of gelatin and for every 20 minutes, 4 ounces of it sets. How many minutes would you have to wait for the whole thing to set. 100 gallons == 12800 ouncesPlease solve this question below. Thank you! 9. Challenge A bag contains 200 red and blue marbles. Three people each took samples of 25 marbles and noted the number of red marbles. Person A 17 red marbles out of 25 marbles Person B 12 red marbles out of 25 marbles Person C 20 red marbles out of 25 marbles a. Combine the samples to make one large sample. Use that sample to predict the number of red marbles in a similar bag that contains 300 marbles. b. Explain how having a fourth sample would make the estimate better.
- Please explainIn the sketches below, one is the histogram of the values of tickets in a box, and the other is the probability histogram of the sum of 150 draws with replacement from the box. Which one is the probability histogram? the one on the left the one on the rightA couple plans to have 5 children. Assume that girl and boy births are equally likely. Find the mean number of girls in 5 births. Round your answer to one decimal place, if needed.
- You land a job at an online marketing/consulting firm after attaining a business degree with an emphasis in statistics. You walk into your office on the first day and there is an assignment sitting upon your desk. The firm was recently hired by ImpulseBuy Now.com (a famous online clearing house for as-seen-on-TV junk items). ImpulseBuyNow wanted to know if the amount of time spent browsing by a customer at their online site associates to how many items the customer purchased. Sound familiar? Realizing that you listed a statistical emphasis in your business degree, you panic and pull out your old statistics notes as to find this unit in the study guide. What luck! You must figure out what to tell ImpulseBuy Now about their question. Here is the data provided by ImpulseBuy Now: Browse Time (min.) 0-10 11-20 More than 20 Browse Time (min.) 0-10 Items Purchased Zero 1000 And your final p-value is extremely small. 1500 500 One 900 Expected Values Zero 600 2600 2500 Your paycheck depends…PROBABILITY UPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS. ANSWER IN 4 DECIMAL PLACES. BOX THE FINAL ANSWER. Determine the following:The mean of 3 numbers is 20. If one more number is included, the mean becomes 25. Find the included number.
- Explain what each phrase means in the context of inferences for a population proportion. a. Number of successesb. Number of failuresPlease teach me on how to solve this problem. C is wrong, maybe B, because it's talking about "sample ", and definitely "36students " are just samples, not population. Thanks so much.Introduce yourself to your peers by sharing something unique about your background. Explain how you expect this course will help you move forward in your current or future career. Tell us about a time when a try, fail, try again approach helped you do something hard, or something that you had never done before. Share 2–3 examples of how statistics is used in the real world. Be sure to respond to at least one of your classmates’ posts.