Statistics question and answers for December 05, 2023
- Q Determine the moments created by the following forces about the origin consider both magnitude and direction Moment created by the 50 N force Moment created by the 100 N force...
- Q Determine the combined moment created by the 400 N force about point O O 0 4 m 0 2 m 30
- Q How does the magnitude of the applied force affect the induced moment How does the perpendicular distance moment arm affect the induced moment Mo Fd
- Q Moments Torques Determine the combined moment created by the 250 N force about point O 30 3 m 250 N
- Q Forces and Moments are physical examples of vectors Describe the magnitude and direction of a force vector in your own words Describe the magnitude and direction of a moment vector...
- Q Notation couple moment vectors are typically represented as Curled arrow wrapped around a straight arrow 3D Straight arrow with double arrowhead 3D Curled arrow 2D 1 2
- Q Colleen Terresa and Mary are vying for a position as editor Colleen who is tested with group I gets a score of 62 on her test Terresa who is tested...
- Q The heights of Russian men are normally distributed with a mean of 70 8 inches and a standard deviation of 3 2 inches According to the empirical rule what percentage...
- Q Calculate the 5 number summary and the interquartile range of the following data 11 65 36 34 46 77 19 53 31 39 17 27 43 60 47 35 Q1...
- Q The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2 7 inches Men the same age have mean height 69 3...
- Q Kary took 4 courses last semester Physics Spanish Calculus and History The means and standard deviations for the final exams and Kary s scores are given in the table below...
- Q A boxplot for a set of data is given below Find the five number summary Find the minimum Find Q1 Find the median 0 1 2 3 4 5 6...
- Q Soc 3 6 Med Med Bus 3 7 3 10 The following table presents homeownership rates in percentages by state for the years 1985 1996 and 2002 These values represent...
- Q Garrett wanted to know if there was a connection between his coffee consumption and how well he slept that night For weeks Garrett recorded how many cups of coffee he...
- Q In a standard deck of 52 playing cards there are 4 aces 4 kings 4 queens and 4 jacks All other cards have number values The kings queens and jacks...
- Q Update A bag contains 4 green 3 yellow 2 purple and 1 blue marble s You draw a marble put it aside and then draw another marble Find the probability...
- Q Students at a school were asked whether they would be interested in free guitar lessons They were also asked whether they were left or right handed The results of the...
- Q A study determined that an average 25 year old male in 2014 could expect to live at least 50 3 more years and an average 25 year old female in...
- Q Students at a high school were asked whether they had ever made dinner for their families The results of the survey are shown in the table Let A represent the...
- Q Sadie attended a music store s banjo sale She counted the types of banjos and made note of their discounts 25 off 50 off 4 strings 8 6 5 strings...
- Q For a few weeks a music producer kept track of newly released songs on a music streaming website He recorded the music genre and number of times the song was...
- Q HOW OLD ARE U S PRESIDENTS The table gives the ages of the first 44 U S presidents when they took office President Age President Age Washington 57 Taylor J...
- Q 5 of 2 ok nt nces Office salaries expense Insurance expense Rent expense Selling space Rent expense Office space Store supplies expense Advertising expense Totals Additional Information 15 550 0...
- Q 0 Three distributions I II and III are shown below as well as three sets of summary a Match each histogram to its set of summary statistics and explain your...
- Q 3 20 In a study of 1 329 American men reported in American Statistician 1974 28 115 122 the men were classified by serum cholesterol and blood pressure The group...
- Q Racing experience years 6 3 10 4 4 2 4 7 a Verify that the mean years of experience is 5 years Does this value appear to adequately represent the...
- Q 2 16 pints Prepare journal entries to record the following merchandising transactions of Lowe s which uses the perpetual inventory system and the gross method August 1 Purchased merchandise from...
- Q What if a thirteenth brand of coffee was added to the data set in the previous problem Death Wish is one of the world s strongest coffees with caffeine concentration...
- Q Suppose that que scores in a beginning statistics class have a mean of 6 7 with a standard deviation of 0 4 Using Chebyshev s Theorem what is the minimum...
- Q Find the mean median and mode of the following data If necessary round to one more decimal place than the largest number of decimal places given in the data Answer...
- Q Consider a set of data in which the sample mean is 34 4 and the sample standard deviation is 7 Calculate the z score given that x 29 9 Round...
- Q Suppose that prices of a gallon of milk at various stores in one town have a mean of 3 71 with a standard deviation of 0 10 Using Chebyshev s...
- Q The following table presents the daily high temperatures for the city of Macon Georgia in degrees Fahrenheit for the winter months of January and February in a recent year 69...
- Q The following stem and leaf plot represents the prices in dollars of general admission tickets for the last 30 concerts at one venue Use the data provided to find the...
- Q National Weather Service reports the annual snowfall in Juneau Alaska to have a mean of 86 inches with a standard deviation of 8 5 inches Assuming the distribution is bell...
- Q Goucher College Hood College Johns Hopkins University Loyola University Maryland Maryland Institute College of Art McDaniel College Morgan State University Mount St Mary s University Notre Dame of Maryland University...
- Q Consider the boxplot below of 160 high school freshmen 80 males and 80 females Approximately what percent of the female students weigh less than the minimum weight of the male...
- Q You are examining the wait time for help with rebooking tickets with major airline s phone service What would a large standard deviation of wait times mean The wait times...
- Q The mean height of players in the National Basketball Association NBA is 78 inches with a standard deviation of 3 2 inches The mean height of players in the National...
- Q One home was randomly selected from three different neighborhoods in a large metropolitan area The table shows the home price and the z score when compared to other homes in...
- Q The data below are the naptimes for 34 children in a daycare Click here to open this data in StatCrunch Compute the five number summary Time minutes 28 40 30...
- Q The box plot represents the weekly salaries in dollars of 80 randomly selected employees of a company The five number summary that was used to construct this box plot is...
- Q In 2019 College Board reported that the mean score for the math section of the SAT was 528 with a standard deviation of 110 A math department at local university...
- Q According to the Arkansas Waterfowl Report an average of 1 2 million ducks migrate through the state yearly with a standard deviation of 0 2 million ducks Assuming the distribution...
- Q Consumer Reports Health reported the accompanying caffeine concentration mg cup for 12 brands of coffee Click here to open this data in StatCrunch Compute the standard deviation for the caffeine...
- Q A Gallup Poll from October 15 2020 asked 1 014 U S adults if they thought marijuana should be legalized The data provided has two categorical variables Age Group 18...
- Q The contingency table below represents the responses to a first day survey of MATH 153 students in 2021 The two questions displayed are about which hand they write with AND...
- Q The contingency table below summarizes a survey given to 130 randomly selected middle schoolers Grade Has Cell Phone No Cell Phone 6th 12 33 7th 10 22 8th 34 19...
- Q A recent survey asked 450 people if they thought women in armed force should be allowed to participate in combat The results of the survey are given in the table...
- Q The table below provides hospitalization information about a sample of ten female who gave birth at a Medical Center in New York The pie chart below depicts the table data...
- Q The table below shows the political party for 46 U S Political Party Democrat Republican Other A Frequency 17 19 Democrat 17 Republican 19 Other 10 What is the relative...
- Q For each of the following implications state the converse inverse and contrapositiv a If a quadrilateral is a parallelogram then its opposite sides are congruent b If an angle is...
- Q Following are the running times in minutes for the 12 top grossing movies rated PG or PG 13 and the 12 top grossing movies rated R for the recent weekend...
- Q You and 10 other people are in a drawing to win a free car You have to pick a number from 2 to 12 The winner of the car will...
- Q grade for a statistics student are given What is the student s weighted mean score The student s weighted mean score is 91 50 Simplify your answer Round to two...
- Q You plan to take a 1905 mile trip in your car which averages 30 miles per gallon How many gallons of gasoline should you expect to use Would a car...
- Q 3 2 Accidents on a DIKE Pain Examining te 8 mile bike path shows that they occur uniformly along the length of the path Figure 3 4 displays the density...
- Q 5 Upper Arm Lengths Anthropomorphic data are measurements on the human body that can track growth and weight of infants and children and evalu ate changes in the body that...
- Q 5 Here are the weights in ounces of 36 navel oranges selected from a large shipment to a grocery store 5 7 5 4 5 8 5 3 4 6...
- Q What s your percentile Reports on a students test score such as the SAT or a child s height or weight usu ally give the percentile as well as the...
- Q 7 The middle half The quartiles of any distribution are the values with cumulative proportions 0 25 and 0 75 They span the middle half of the distribu tion What...
- Q 3 Are we getting smarter When the Stanford Binet IQ test came into use in 1932 it was adjusted so that scores for each age group of children followed roughly...
- Q 1 Heights of men and women The heights of women aged 20 29 follow approximately the N 64 2 2 8 dis tribution Men the same age have heights distributed...
- Q 1 Here are the resting heart rates of 26 ninth grade biology students Make a stemplot of these data Do no split stems 61 7 77 81 48 75 70...
- Q 6 31 Acid rain Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in acid rain The acidity of liquids is measured by pH...
- Q 8 35 I love my bug The 2016 Volkswagen Beetle with a four cylinder 1 8 L engine and automatic transmission has combined gas mileage of 28 mpg What percent...
- Q a Find the number z such that the proportion of ob servations that are less than z in a standard Normal distribution is 0 2 Find the number such that...
- Q Cholesterol Low density lipoprotein or LDL is the main source of cholesterol buildup and blockage in the arteries This is why LDL is known as bad cholesterol LDL is measured...
- Q 7 Monsoon Rains The summer monsoon rains bring 80 of India s rainfall and are essential for the country s agriculture Records going back more than a century show that...
- Q 9 Men s and Women s Heights The heights of women aged 20 29 in the United States are approximately Normal with mean 64 2 inches and standard deviation 2...
- Q Monsoon Rains The summer monsoon rains in India follow approximately a Normal distribution with mean 852 millimeters mm of rainfall and standard deviation 82 mm BIC 3 a In the...
- Q 1 Find the limit function for the sequence of functions f x Is this convergence uniform Why or why not 1 1 mx 1 on the interval 0 1
- Q 6 5 5 4 2 1 T 3 2 1 0 1 2 11 2 3 N 3 3 T 4 T 5 6 X 4 Find average rate of...
- Q Find the following Probabilities given 500 people were surveyed Total Sports a b C Men Women Total Dance 0 04 0 32 0 36 0 20 0 12 0 32...
- Q Opening Activity In a class of 30 students 3 out of the 16 girls and 6 out of the 14 boys are left handed Draw a Venn diagram and find...
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