Find the sample variance and standard deviation For the following sample. Round the answers to two decimal places as needed. 1+5 3? 23 19 l? 14 {museums} k The sample variance is D. The sample standard deviation is '3. Find the population variance and standard deviation for the following population. Round the answers to at least two decimal plaoes. 1991332329 r\\ 'x Send data to Encel J The population valianoe is D . The population standard deviation is C] . Sports car or convertible? 111e following table presents the fuel efciency, in miles per gallon, for a sample of convertibla and a sample of sports cars. 25 2112525242121 22222324 211321 Scl'llatn-Enxl (a) Find le sample standard deviation ofthe mileage for the sample of convertibles. Round the answer to one decimal place as needed. The sample standard deviation for the convertibles, in miles per gallon, is D. I Good cholesterol: High-density lipoprotein cholesterol (HDL) is sometimes called "good cholesterol," because it carries excess cholesterol to the liver where it is removed from the body. High HDL levels are desirable. Following are HDL measurements, in milligrams per deciliter, for samples of 10 men and 10 women between the ages of 18 and 29. Men 30 41 32 45 46 47 62 61 52 55 Women 40 37 43 54 51 41 82 83 80 69 Send data to Excel Part: 0 / 3 Part 1 of 3 (a) Find the sample standard deviation of HDL levels for men. Round the answer to one decimal place as needed. The sample standard deviation of HDL levels for men isHmf football olive-5: Following are the weights, in pounds, for samples of offensive and defensive linemen in the National Football League. offensive 281 23"5 3U? 32? 332 250 299 23W 2?? 390 250 2?4 DefaIsive 234 344 325 312 314 33? 282 290 233 3'33 319 346 [a] Find the sample standard deviation for the weights of the offensive linemen. Round the answer to one decimal place as needed. The sample standard deviation for the weights of the offensive linemen is D. I Lunch break: In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $44.63 with standard deviation $2.87. The weekly amounts are approximately bell-shaped. Part: 0 / 3 Part 1 of 3 (a) Estimate the percentage of amounts that are between $36.02 and $53.24 (Choose one) of the amounts fall between $36.02 and $53.24. X Approximately 68% Approximately 75% Approximately 95% Approximately 88.9% Almost allNewborn babies: A study conducted by the ICenter for Population Economics at the University of Chicago studied the birth weights of 1513 babies born in New York. 111e mean weight was 3176 grams wi1 a standard deviation 01'900 grams. Assume that birth weight data are approximately bellshaped. Estimate the number of newboms who weighed between 221% grams and 4076 grams. Round to the nearest whole number. The number of newborns who weighed between 2276 grams and 401135 grams is D. X h