Question

I'll fan and medal if someone helps me with my study guide PLEASE!!! HELP!!!

Answer 1

1. For a sampling to truly be random there must be some __ involved.

2. Are the following examples of random samples? Why or why not?
a. Asking people in an ice cream shop, if they like ice cream.
b. Surveying middle school students on what their favorite high school course is.
c. Completing a survey on whether people like shopping at Publix in front of Publix.
d. Walking around to you neighbors to ask whether the new community center should get a pool or a tennis court.

3. When doing a survey, the most important thing to remember is that your sample must be .

4. Susan surveys 20 people in her 7th grade math class to find out the most popular movie. 5 students say Star Wars. If there are 200 students in the total 7th grade class, using a proportion, find out how many students Susan would expect to like Star Wars.



5. Should Susan do more than one sample? Why or why not?




6. In your own words, what is visual overlap.



7. Give the steps on how to calculate the Mean Absolute Deviation.


8. In a box plot, the wider the box the more it has.

9. In the following set of number 66, 55, 65, 65, 44, 54, 10 is there an outlier? If so… what is is?



10. Find the mean of 66, 55, 65, 65, 44, 54, 10 with the outlier and without the outlier.
With Outlier Without Outlier








11. Find the median of 66, 55, 65, 65, 44, 54, 10 with the outlier and without the outlier.

With Outlier Without Outlier







12. Which measure of central tendency, the median or the mean, is more affected by the outlier? Why? (Hint: Use questions 20 and 21 to help you formulate your response if needed. Also the video on pg. 3 of lesson 8.03 helps as well. :D )

Answer 2

lol one question at a time dude!

Answer 3

okay

Answer 4

for a sampling to truly be random there must be some involved.

Answer 5

or a sampling to truly be random there must be some ______blank_______ involved.