![waltersamy30](/avatars/20635.jpg)
waltersamy30
08.10.2019 •
Mathematics
1. what is the most important thing that must be true about a sample so that you can make a valid inference about the population?
2. why is it important to take a random sample of the population you want to study?
3. which measure of center is more affected by outliers in the data and why?
4. sam conducted a survey to find out the favorite weekend activity of the students his middle school. he asked 20 of his classmates. he found out that the favorite weekend activity of his middle school is playing video games because 75% of the students he surveyed liked to play video games.
explain why sam’s sample may not be valid. provide 2 or 3 sentences of explanation with facts to support your answer. how could sam improve his survey to be more representative of his school?
Solved
Show answers
More tips
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
Answers on questions: Mathematics
- M Mathematics If you stand facing east and turn through 3/4 of a revolution, in which direction will you be facing?...
- M Mathematics Consider the equation below. (If an answer does not exist, enter DNE.) f(x) = x3 − 6x2 − 15x + 2 (a) Find the interval on which f is increasing. (Enter your answer using interval...
- M Mathematics How many edges and vertices does a prism with 100 sided end faced have ? Please answer as quickly as possible ≈[infinity]...
- M Mathematics If f(3) = 14 and f (x) ≥ 3 for 3 ≤ x ≤ 6, how small can f(6) possibly be?...
- M Mathematics Last year, Theodora estimated that she would sell 96 bracelets. But at the end of the year, she had 16 bracelets left over. Which explains how Theodora can find the percent error...
- M Mathematics The points (-3,5) and (3,5) are two vertices of a square. State all other order pairs that could be the other two vertices of the square....
- M Mathematics What is the permeter of square ABCD?...
- M Mathematics Find the volume of a pyramid please help i’ll give u brainleist...
- M Mathematics Sara drew five shapes on her paper. The fraction that represented the number of rectangles in the set was . Later, she doubled the size of her set by drawing the same five shapes...
- M Mathematics Graph 4x+y = 6x-1 Show your work and explain the method used to determine the graph....
Ответ:
2.) It is important to take a random sample of the population you want to study because the population may be too large that it might be impossible or too expensive to conduct a survey on a population.
3.) An outlier is an observation point that is distant from other observations. It can be too small or too big compared to other observations.
The measure of center that is more affected by outliers in the data is the mean, because since the mean is obtained by the sum of the data divided by the number of the data set. Any 'too big' number or 'too small' number will affect the sum of the data set.
4.) Given that Sam conducted a survey to find out the favorite weekend activity of the students his middle school. He asked 20 of his classmates. He found out that the favorite weekend activity of his middle school is playing video games because 75% of the students he surveyed liked to play video games.
Sam’s sample may not be valid because he drew a sample only from his class to make an inference about the entire middle school students.
For Sam to improve his survey to be more representative of his school he must draw a random sample from all the classes that make up the middle school.
Ответ:
Step-by-step explanation:
(x + y)^5 = 1·x^5·y^0 + 5·x^4·y^1 + 10·x^3·y^2 + 10·x^2·y^3 + 5·x^1·y^4 + 1·x^0·y^5
Correct is only A