Mathematics, 26.08.2020 08:01 freyaocain
The researchers divide the heart attack patients based on race, and then measure the
cholesterol levels of randomly selected patients in each race
grouping.
The researchers list all of the heart attack patients and measure the cholesterol level of every 25th person on the list.
The researchers go to one hospital on a given day and measure the cholesterol level of the heart attack patients at that time.
The researchers randomly select 5 hospitals in the U. S. then measure the cholesterol
levels of all the heart attack patients in each of those hospitals.
The researchers list all of the heart attack patients. They then measure the cholesterol
levels of randomly selected patients.
a. convenience sample
b. simple random sample
c. stratified sample
d. systematic sample
e. cluster sample
Answers: 2
Mathematics, 21.06.2019 17:30
Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression
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Mathematics, 21.06.2019 20:00
Given: ∆mop p∆mop =12+4 3 m∠p = 90°, m∠m = 60° find: mp, mo
Answers: 1
Mathematics, 21.06.2019 21:00
Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)
Answers: 2
Mathematics, 21.06.2019 21:40
Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.
Answers: 1
The researchers divide the heart attack patients based on race, and then measure the
cholesterol le...
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