I need help with these practice questions please, I need to know how to solve these

According to the World Health Organization (WHO), Body Mass Index (BMI) is a statistic that indicates the ratio of a person's weight to their body volume. The Center for Disease Control (CDC) uses the table to classify children from ages 2 to 20. Because BMI values change as children grow, the CDC uses percentiles rather than xed values for BMI. Percentiles provide a basis of comparison for BMI over time. Weight status Percentile range Underweight Less than the 5th percentile Healthy weight 5th percentile to less than the 85th percentile Overweight 85th to less than the 95th percentile Obese Equal to or greater than the 95th percentile Based on data from WHO, a representative sample of 13yearold males could consist of the following 15 values. 16.8,17.1,14.8,16.3, 20.1,15.7,19.1,17.8,19.6,20.8,17.5,18.7,18.2, 28.2, 22.3 The Centers for Disease Control and Prevention (CDC) estimated the percent of individuals in each state who are classied as overweight or obese in different years. They calculated the estimates separately for three different age classes, including children (24 years old), adolescents (students in grades 912), and adults (aged 18 years and older). The boxplots display the given ve-number summaries (Min, First Quartile (Q 1) , Median, Third Quartile (Q3) , Max) computed based on the data for two different age classes. Match the appropriate descriptions to the data sets. Answer Bank the distribution is skewed to the right 25% of the values are less than 21.30 [ the distribution is skewed to the left | 25% of the values are more than 20.60 25% of the values ale more than 15.82 25% of the values are less than 8.70 25% of the values are more than 31.08 the distribution is close to symmetrical 25% of the values are more than 35.10 25% of values are less than 26.40 25% of values are less than 13.42 W 20 22 24 26 28 30 32 34 36 Adults who were obese in 2013 (%) Min Q1 Median Q3 Max 21.30 26.40 29.40 31.08 35.10 % flllIlfI 8 10 12 14 16 18 20 22 Children who were obese in 2012 (%) Min Q1 Median Q3 Max 8.70 13.42 14.65 15.822060 Suppose Chloe works for a non-prot organization that raises funds to provide counseling for primary caregivers in singleparent families. Chloe's boss wants to know more about the likely ages of parents who will receive counsel from their organization. Chloe's boss asks Chloe to provide an interval of the middle 93.75% of ages of single parents. Chloe knows that the mean age of the primary caregivers in single-parent families in her community is 45 years old and that the corresponding standard deivation is 7, however she does not know how these ages are distributed. Using Chebyshev's inequality, what interval should Chloe give for the middle 93.75% of ages of single parents in her community? Round your answers to the nearest whole number. Avoid rounding within calculations. interval lower bound = C] interval upper bound = C] Last summer, the Smith family drove through seven different states and visited various popular landmarks. The prices of gasoline in dollars per gallon varied from state to state and are listed below. $2.17, $2.97, $2.70, $3.80, $3.09, $2.75, $3.53 Click to download the data in your preferred format. Crunchlt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc Calculate the range of the price of gas. Give your solution to the nearest cent. Suppose that Kevin is playing a video game in which additional enemies spawn randomly during a boss fight. He read in an online guide that the wait time until a new enemy spawns is uniformly distributed between 35 s and 45 s. 30 35 40 45 50 If an enemy has just spawned, what is the median amount of time until the next enemy spawns? What is the mean amount of time until the next enemy spawns? SA scale is tested by repeatedly weighing a standard 9.0 kg weight. The weights for 10 measurements are 9.1, 8.9, 9.5, 9.3, 8.9, 9.4, 9.3, 8.9, 9.4, 8.3 You may download the data in your preferred format if you wish. CrunchIt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc Determine the mean weight. Give your answer precise to one decimal place. mean: kgSuppose there are 20 people in a room and the mean amount of cash held by these 20 people is $13.05 per person. If two people enter the room carrying $30.00 and $21.00 respectively, what does the mean amount of cash in the room become? Give your answer in dollars and cents; that is, precise to two decimal places. $ C] per person The Bureau of Labor Statistics (BLS) collects data regarding occupational employment and wages in the United States. The stemandleaf plot below represents the mean hourly wage in dollars for various management positions in the state of Arkansas for May 2015. Leannit=1.0 201233 25 303 35569 4012223 488 522 555677 Find the mode of the data set. Give your answer precise to the nearest dollar. The Bureau of Labor Statistics (BLS) collects data regarding absences from work for full-time employees in the United States. The following dot plot represents the total annual absences, in thousands, for 24 industries in 2014. O O O O O O O O O O O O O O O O O O O O O O O O lIIllIIllI 2.0 2.2 2.4 2.6 2.8 3.0 3,2 3.4 3A6 3,8 Absences (in thousands) Find the mode number of absences. ter numeric value Cunnoce a biologist studying the mechanical limitations of tree growth monitors a national preserve. He collects data on the heights of 10 different trees in the preserve. Below is the data, rounded to the nearest foot. 44, 80, 71, 67, 44, 92, 87, 67, 76, 44 Compute the mean, median, and mode of the data set. Round values to the nearest 0.1 ft. mean: ft median: ft mode: ftA nurse practitioner is studying the effects of sugary drinks on weight gain. To begin the study, the nurse practitioner asks a random sample of patients how many sugary drinks they consume in one day. Each person is asked to report a whole number. The results of the survey are shown in this relative frequency histogram. 0.5 .o .o .o N U) 3 Relative frequency 9 ._. l 2 3 4 5 Number of sugary drinks consumed in one day Determine the median number of sugary drinks consumed in one day by the patients sampled in the survey. median = C] sugary dIka(S) Suppose that an international health organization produces neonatal mortality estimates (i.e., neonatal death counts) for 12 randomly selected nations. 0 Identify the median neonatal mortality . 3 3 8 . g . o . lllllTllllTI estlmate from the dot plot. Report your answer 5 10 15 20 25 30 35 40 45 so 55 60 as a whole number representing thousands of Neonatal deaths (in thousands) deaths. Median neonatal mortality = :] thousand deaths Suppose that the following frequency table contains data on the number of absences in a school year due to illness or injury for 80 randomly selected high school students. Use the table to determine the median number of absences for these 80 students. Provide your answer with precision to one decimal place. Number of Frequency absences 0 20 1 9 2 1 1 3 8 4 5 5 10 6 4 7 3 8 3 9 1 10 3 1 1 3 Click to download the data in your preferred format. CrunchIt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc Suppose that the following frequency table contains data on the number of absences in a school year due to illness or injury for 80 randomly selected high school students. Use the table to determine the median number of absences for these 80 students. Provide your answer with precision to one decimal place. Number of Frequency absences 0 20 1 9 2 1 1 3 8 4 5 5 10 6 4 7 3 8 3 9 1 10 3 1 1 3 Click to download the data in your preferred format. CrunchIt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc A sample of 30 students at a local college were given a test consisting of 10 questions about current news events. The distribution of the number of correct answers given is recorded in the frequency column of the table. Questions that were not answered were marked incorrect. The frequency represents how many of the 30 students who took the test got a certain number of answers correct. For example, four students answered ve questions correctly. Number correct Frequency 0 5 1 3 2 2 3 3 4 1 5 4 6 1 7 3 8 4 9 2 10 2 You may download the data in your preferred format if you wish. Crunchlt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc Determine the mean number of points, 5, earned on the test. Give your answer precise to one decimal place. > --------------- w _________________ Suppose 28 associates at a particular call center receive yearly bonuses based on their customers's average level of satisfaction. Customers rate their satisfaction level from 1 5 for each customer service call, where l is not satised, and 5 is very satised. The table shows the percentage of customers that selected each level of satisfaction during the current year. Satisfaction level Percentage of customers 5 34 4 26 3 22 2 l 1 l 7 You may download the data in your preferred format if you wish. CrunchIt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc Determine the mean level of satisfaction, denoted as i, of the given data set. Report your answer precise to two decimal places. XI || :] You receive faxes with six bids (in millions of dollars) 2.2, 1.3, 1.9, 1.2, 2.4, x where x is some number that is too blurry to read. Without knowing what x is, you know that the median 0 must be at least 1.6 and no more than 2.05. 0 must be 1.9. 0 must be 1.6. 0 could be any number between 1.2 and 2.4