Mathematics, 05.08.2021 23:10, Reebear8372
Which of the following methods of sampling is an example of a stratified random sample?
A. Randomly choosing a name from a list of names in the population and then choosing every tenth name thereafter.
B. From 500 names of members of a population in a hat drawing 50 names from the hat without looking.
C. Dividing a target population of students by grade level and choosing the first 25 names from each group.
D. Dividing a population of adults into males and females and randomly choosing a sample proportional to the numbers in each group.
Answers: 3
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Which statement best describes the relation between correlation and causation? a. correlation results in causation. b. correlation does nog imply causation. c. correlation and causation are unrelated. d. correlation and causation are the same thing.
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Mathematics, 21.06.2019 13:00, aaron2113
Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.
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Mathematics, 21.06.2019 20:30, cgarnett5408
Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how
Answers: 2
Which of the following methods of sampling is an example of a stratified random sample?
A. Randomly...
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