se the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table. A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 51.1 mm and a standard deviation of 2.4 mm. What percent of the butterflies had the following wingspans? (Round your answers to one decimal place.) (a) less than 48.8 mm % (b) between 50 and 52 mm %

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table.A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 51.2 mm and a standard deviation of 2.7 mm. What percent of the butterflies had the following wingspans? (Round your answers to one decimal place.) (a) less than 48.9 mm(b) between 50 and 52 mm   Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table.The cholesterol levels of a group of young women at a university are normally distributed, with a mean of 184 and a standard deviation of 39. What percent of the young women have the following cholesterol levels? (Round your answers to one decimal place.)   (a) greater than 223 %(b) between 187 and 225 %

A student studying statistics wants to look at data for his favorite sport, American football. He collects data on the lengths of 100 field goals from various games over several seasons. Would it be more appropriate to find a sample standard deviation or population standard deviation in this situation? Select the correct answer below:   A. Sample standard deviation   B. Population standard deviation

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table.A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 52.5 mm and a standard deviation of 2.5 mm. What percent of the butterflies had the following wingspans? (Round your answers to one decimal place.) (a) less than 48.9 mm  %(b) between 50 and 53 mm %

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using the table.A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 53.4 mm and a standard deviation of 2.6 mm. What percent of the butterflies had the following wingspans? (Round your answers to one decimal place.) (a) less than 48.9 mm %(b) between 50 and 55 mm %

The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Complete the table. Round values to the nearest tenth as needed. Graph/chart f Midpoint x xf 70.5 Ay 30- 92.5 26 25- 114.5 136.5 20- 158.5 15- 12 Ef = Exf = 10- Find the mean of the data set. 5- X = (Round to the nearest tenth as needed.) 48.5 70.5 92.5 114.5 136.5 158.5 Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f X-X 70.5 Print Done 92.5 114.5 136.5 158.5 (x-x)?r= ] of

A sample of size 50 will be drawn from a population with mean 76 and standard deviation 14. Find the 69th percentile of  x.

Draw by hand or in Excel fully labelled curves on a common scale to represent two sets of scores where: b. Mean = 50, Standard Deviation = 2, Mean = 50, Standard Deviation = 5. CUA

for the data shown, answer the questions, round to 2 decimal places, 10.9,12.5,29.8,19.3,19.7,23.3,2.8,29.2,23.5. find the mean, median and the standard deviation.

The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Graph/chart Midpoint x xt Ay 30+ 2 70.5 141 24 14 92.5 1295 25- 24 114.5 2748 20- 7 136.5 955.5 14 15- 3 158.5 475.5 10- 7 ΣΤ- 50 Exf = 5615 5- Find the mean of the data set. 48.5 70.5 92.5 114.5 136.5 158.5 x = 112.3 (Round to the nearest tenth as needed.) Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f Print Done X-X 70.5 - 41.8 1747.2 3494.5 92.5 1295 85556.3 119787.5