2023-11-20 09:44:35
What does 95% confidence in the poll results mean?
What does 95% confidence in the poll results mean?

There have been a lot of polls about who will win the Presidential election. I get so confused when polling results are reported. What is a 95% confidence measure? What's the margin of error? What is standard deviation? In this activity students consider the errors in choosing polling samples, find the absolute mean data difference, the standard deviation of a sample and calculate the margins of error.
Comments (0)
Display 1 - 10 Of total 0
Mental math tricks - part 2
36 x 25 = 900 480 x 25 =12,000  ...
Holiday soda displays
The holidays are coming! We found these time...
Pizza party figuring
In this activity students decide how to ...
It's almost summer now
How much wat...
More eruptions on Hawai'i's Kilauea
The Volcano Kilauea is continuing to spew ...
Will this be an El Niño winter?
The Oceanic Niño Index (ONI) started to show...
Opening Weekend - Avengers: Endgame
Can you tell from its opening we...
How many cars are there?
Brian came home from work to find t...
How steep is this treadmill?
Every year, even older students still ...
An ounce of cola
Which is more expensive; gasoline? milk? or cola...