For each of the following settings in Exercises 2.1.1-2.1.4, (i) identify the variable(s) in the study, (ii) for each vari- able tell the type of variable (e.g.,categorical and ordinal, discrete, etc.), (iii) identify the observational unit (the thing sampled), and (iv) determine the sample size. A total of 129 persons donated blood. For each of them, the blood type and cholesterol levels were recorded. 2.1.3 (a) A biologist measured the number of leaves on each of 25 plants. 2.1.1 (a) A paleontologist measured the width (in mm) of the last upper molar in 36 specimens of the extinct mam- mal Acropithecus rigidus. (b) The birthweight, date of birth, and the mother's race were recorded for each of 65 babies. (b) A physician recorded the number of seizures that each of 20 patients with severe epilepsy had during an eight-week period. 2.1.4 (a) A conservationist recorded the weather (clear, partly cloudy, cloudy, rainy) and number of cars parked at noon at a trailhead on each of 18 days (b) An enologist measured the pH and residual sugar content (g/l) of seven barrels of wine. 2.1.2 (a) A physician measured the height and weight of each of 37 children. (b) During a blood drive, a blood bank offered to check the cholesterol of anyone who donated blood.

3.5x=14.7

х -0.4 -1.5 -0.2

Pls help ASAP on all asked questions

Number 6.12

2.763-4.5(2.1x-5.1432)=6.32x+5

4 1/2 +6 1/5=

Suppose you have a sample of five observations of a variable x, which take the values 3, 0, 1, 6, 0. Round answers to two decimal places when necessary (e.g., 1/3=0.33 or 0.567=0.57). 1. What is the sample mean? Sample mean%=D 2. What is the sample variance? Sample variance= 17.75 3. What is the mode? Mode= 0 4. Of the sample statistics: A) mean; B) median; or C) mode, which is the most sensitive to outliers? Enter your answer as the letter A, B, or C. The is most sensitive to outliers Answer 1: You Answered Correct Answer

Find x. 31.8 7 14.3

Simplify 1 1 2. 4. 8.