I need help with these 6 questions please:

1.

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. lEDl | the distribution is skewed to the right | W 25% of the values are more than 31.08 20 22 24 26 28 30 32 34 36 the distribution is skewed to the left Adults who were obese in 2013 (%) 25% of values are less than 26 40 Min Q1 Median Q3 Max 21.30 26.40 29.40 31.08 35.10 % llIllI 8 10 12 14 16 18 20 22 . . . , l . Children who were obese in 2012 (%) the dlstnbuuon Is c 058 to symmetrical Min Q1 Median Q3 Max 8.70 13.42 14.65 158220.60 25% of values are less than 13.42 25% of the values are more than 35.10 25% of the values are less than 8.70 25% of the values are more than 20.60 MIDI 25% of the values are more than 15.82 | 25% of the values are less than 21.30 | 'l'est data for 100 students is shown in the frequency table. Calculate the variance of the grouped numbers. Use the formula for the variance (32) shown, where x is the midpoint of the interval, f is the frequency of the interval, 5 is the mean data value, and n is the number of values. Please round your answers to two decimal places. 2(f- (acif) 2 s nl 2140 4160 6180 81100 27 31 22 8 test score range 120 frequency 12 Step 1. Determine the mean of the values. Use the weighted mean obtained by multiplying the midpoint of each test score range by the frequency. Step 2. Determine the product of the sum of the squared deviations times the frequency for the rst group of values. fixW :1 Step 3. Determine the product of the sum of the squared deviations times the frequency for the second group of values. f . ( x - x ) ' = Step 4. Determine the product of the sum of the squared deviations times the frequency for the third group of values. f . ( x - x ) = Step 5. Determine the product of the sum the squared deviations times the frequency for the fourth group of values. f . ( x - x) ' = Step 6. Determine the product of the sum of the squared deviations times the frequency for the fifth group of values. f . ( x - x ) ' = Step 7. Sum the values in steps two through six.Step 7. Sum the values in steps two through six. Step 8. Find the variance by dividing by one less than the number of values, n 1. Calculate the sample standard deviation for this data set: 88, 73, 91. The formula for the sample standard deviation is shown, where n represents the sample size, x represents each value in the data set, and i represents the sample mean. 2 (x )2 S: nl Click to download the data in your preferred format. Crunchlt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Cale Step 1. Calculate the sample mean. H Step 2. Calculate the deviations and the squares of the deviations. deviation of 88 = :] square of deviation of 88 = deviation of 73 = :] square of deviation of 73 = deviation of 91 = :] square of deviation of 91 = Step 3. Calculate the sample variance and the sample standard deviation. Provide your sample standard deviation answer precise to one decimal place. Using the sum of squares formula (also known as the shortcut formula) for sample standard deviation, calculate the standard deviation of the numbers 10, 20, and 15. In the sum of squares formula, x represents the data value and n represents the number of values. standard deviation = Step 1. Determine the sum of squares of the three values. Step 2. Determine the square of the sum of the three values. Step 4. Subtract the result in Step 3 from the result in Step 1. Step 5. Divide the result in Step 4 by n l. The Bureau of Labor Statistics (BLS) collects data regarding occupational employment and wages in the United States. The stem-and-leaf 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. 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 . 2 3 3 . o o 0 estimate from the dot plot. Report your answer 5' 1'0 1'5 2'0 25 30 35 4'0 4'5 50 55 60 as a whole number representing thousands of Neonatal deaths (in thousands) deaths. Median neonatal mortality = C] thousand deaths