Download presentation

Presentation is loading. Please wait.

Published byReuben Sark Modified over 2 years ago

1
Presented by: Jacob A. Tievy

3
How Many Years Have You Lived in Poolesville? Number of Years Living in Poolesville Number of People 0 Years 4 1 Year 1 2 Years 1 3 Years 0 4 Years 0 5 Years 1 6 Years 2 7 Years 1 8 Years 1 9 Years 0 10 Years 1 11 Years 13

9
The mean for the data that I collected is: (0 x 4 = 0) + (1 x 1 = 1) + (2 x 1 = 2) + (3 x 0 = 0) + (4 x 0 = 0) + (5 x 1 = 5) + (6 x 2 = 12) + (7 x 1 = 7) + (8 x 1 = 8) + (9 x 0 = 0) + (10 x 1 = 10) + (11 x 13 = 143) = 188 188 / 25 = 7.52

10
The Mode for the data I collected is 11 years, since it is the most common number of years by far in my sample.

11
The Median for the data that I collected is 11 years. This is because over half of the people that I surveyed (13 out of 25 people) said that they have lived in Poolesville for 11 years.

12
The range for the data that I collected was 11 years. This is because the number of years that people have lived in Poolesville ranged from zero (0) years to eleven (11) years.

13
The mode is the best representation for the Central Tendency of the data that I collected. This is because over half of the people that I surveyed (13 out of 25) said that they have lived in Poolesville for 11 years.

14
My sampling technique was a convenience sample. I surveyed 6 th grade students at John Poole Middle School. My sampling was biased because I only surveyed sixth-graders, so their answers were limited to eleven or less. It was also biased because the survey was taken at a school in Poolesville, as opposed to a random location.

Similar presentations

OK

Central Tendency Mean – the average value of a data set. Add all the items in a data set then divide by the number of items in the data set.

Central Tendency Mean – the average value of a data set. Add all the items in a data set then divide by the number of items in the data set.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on life insurance corporation of india Ppt on social reformers of india Download ppt on coordinate geometry for class 9th date Ppt on personality development and communication skills Ppt on object-oriented programming polymorphism Ppt on organised retailing in india Ppt on high level languages in urdu Free ppt on brand management Ppt on history of vedic maths pdf Ppt on famous indian entrepreneurship