Stats Quiz Paper
Quiz 1 Refer tothe following time plotthat exhibits the variety of breeding bald eagle pairs within the decrease United States and reply the questions 1-2. 1.For which 12 months is the numberpairs of bald eagles is lowest based on the above plot? 2.Write the approximate variety of pairs of bald eagles within the 12 months 2000. Refer tothe following displayfor the questions Three-Four Three.The complete income receivedaccording to the above show is roughly Four.The share of income contributed by the state is roughly 5.Roughly what share of the bills is within the space of operations and upkeep? Refer tothe following stem plot for the questions 6-10 Thestemplotdisplays thenumberofhoursthata pattern of 15studentsspentstudyingforacalculusfinalexam zero*9 1* 1*2333 1*45 1*6 1*8899 2* zero 2 *2 2*Four 6.What's the imply of this knowledge? 7.What's the median of this knowledge? eight.What's the first quartile of this knowledge? 9.What's the third quartile of this knowledge? 10. What is the inter quartile vary of this knowledge? 11. It's found that 24 hours was a typographical error for 42 hours. How will thiserror change the reply for imply within the query #? 12. It's found that 24 hours was a typographical error for 42 hours. How will thiserror change the reply for median within the query #7? Use the next histogram for answering questions 13-16 The histogram refers back to the household incomes of 100 households in a sure county 13. Fill within the following desk primarily based on the data fromthe above histogram. Class (1000s of $$) MIDPOINT Frequency 0£revenue<50 50 £revenue<100 100 £revenue<150 150 £revenue<200 200 £revenue<250 250 £revenue<300 300 £revenue<350 350 £revenue<400 400 £revenue<450 450 £revenue<500 500 £revenue<550 550 £revenue<600 14. Write the % households with revenue lower than $50000 15. Write an approximate worth of the imply for the info represented by this histogram. 16. Write the category that accommodates the median worth for this knowledge. Forthequestions17?19usethefollowingsample dataforthetimethatittookmembersofasearch committeetogothrough 6applications,thetimeis inminutes. 12,18,23,27,28,30 17.Findthemean xofthisdata. 18.Fillthefollowingtable x x-x (x-x)2 12 18 23 27 28 30 19.Findthestandarddeviationsofthisdata. 20. A bag of candies accommodates 20 candies, eight of that are pink, 6 blue, Three yellow, and three inexperienced. A sweet is randomly drawn. Writethe likelihood that this sweet will probably be pink. 21. Refer tothe following desk that exhibits the gender of school members and their self-discipline areas in a sure faculty and reply the questions22-25 Male Feminine STEM 78 42 HUMANITIES 65 70 BUSINESS 59 21 A school member is selectedat random. 22. Discover the likelihood that the randomly chosen school member is a male. 23. Discover the likelihood that the randomly chosen school member is a male on condition that the selection is from Humanities. 24. Discover the likelihood that the randomly chosen school member is a male and teaches enterprise. 25. Discover the likelihood that the college member teaches enterprise. 26. Two truthful cube (one yellow and the inexperienced) are rolled. Discover the likelihood that the inexperienced die may have six dots dealing with up on condition that the yellow die has six dots dealing with up. 27. Are the occasion sixdots dealing with up on the yellowdie and the occasion six dots dealing with up on the inexperienced die unbiased? Use the next field plot for the questions 28-30. The field plot refers to a pattern of common month-to-month temperatures in levels Fahrenheit for the cities ofSan Diego and Minneapolis. 28. Which metropolis has a better variability in common month-to-month temperatures? 29. Which metropolis has the better share of months with temperatures over 55 levels F? 30. Write the medians of the 2 field plots.