Question

Explain the meaning of the accompanying percentiles. (a) The 10th percentile of the head circumference of males 3 to 5 months of age in a certain city is 41.0 cm. (b) The 95th percentile of the waist circumference of females 2 years of age in a certain city is 49.8 cm. (c) Anthropometry involves the measurement of the human body. One goal of these measurements is to assess how body measurements may be changing over time. The following table represents the standing height of males aged 20 years or older for various age groups in a certain city in 2015. Based on the percentile measurements of the different age groups, what might you conclude? Click the icon to view the data table for part c. (a) Choose the correct answer below. A. 10% of males have a head circumference that is 41.0 cm or less. B. 10% of 3- to 5-month-old males have a head circumference that is 41.0 cm or less. C. 90% of 3- to 5-month-old males have a head circumference that is 41.0 cm or less. OD. 10% of 3- to 5-month-old males have a head circumference that is 41.0 cm or more. (b) Choose the correct answer below. A. 95% of 2-year-old females have a waist circumference that is 49.8 cm or less. B. 5% of 2-year-old females have a waist circumference that is 49.8 cm or less C. 95% of 2-year-old females have a waist circumference that is 49.8 cm or more. D. 95% of females have a waist circumference that is 49.8 cm or less. (c) At each percentile, the heights generally as the age increases. Assuming that an adult male does not grow after age 20, the percentiles imply that adults born in 1990 are generally than adults who were born in 1950. 0 Standing Height (cm) - Age 20-29 30-39 40 - 49 50 - 59 60 - 69 70 - 79 80 or older 10th 166.8 166.9 167.9 166.0 165.3 163.2 161.7 25th 171.5 171.3 172.1 170.8 170.1 167.5 166.1 Percentile 50th 176.7 176.0 176.9 176.0 175.1 172.9 170.5 75th 181.4 181.9 182.1 181.2 179.5 178.1 175.3 90th 186.8 186.2 186.0 185.4 183.7 181.7 179.4 Print Done

Answer 1

B. 10% of 3 to 5 -months-old males have a head circumference that is 41.0 cm or less . waist circumference 6 A. 95% of 2-year-old females have a that is 49.8 cm 49.8 cm or less. © At each percentile, the heights are generally [shorter the age increases. Assuming Assuming that an adult male does not after age 20, the percentile implies that adults bom in 1990 tailer than adults who were bom in CLS grow are generally 1950,

9.2. Let , X Amount of time to complete online portion of an exam. EX 779.8 97.475 97.48 • Mean n 8 . Answer:- A. The mean exam time is 97.48 Median value of () obs + value of ( 2 + 1 hods ; if n 1 C2 is even Here , n = 8 which is even. Median Value of (9) Mons? + value of (+)** obs? 2 value of 4th obs? + 2 value of 5th obs? .: Ascending order of x 66.9,73.1, 87.7, 94.7, 103.2,104:9,120.9, 128.4 Median = 94.7 + 103.2 こ 98.95 2 Answer : A. Median exam time is 198.951 Mode = the number that Set . appears most frequently in a dato In given data, no any valie appears more than one times - Mode does not exist Answer :- B. The mode does not exist