aliceteaparty's Recent Projects

CoinTossHead

Experiment: Toss a coin repeatedly until you get a "Heads". What is the average number of tosses needed. Scroll through the list to see the highest numbers of tosses needed. CoinToss by HMNWilson.

Dice1

Roll 1 die. Variable is g Use as you want..

Dice2

Roll 2 dice. Variables are g1 and b1. Use as you want. Ex. http://mathcasts.org/mtwiki/InterA/DiceDifference

Spinner345G

My thanks to Scratchie - I had been thinking about how to make a spinner with variable sector distribution, but couldn't figure out how to count it. From Scratchie's spinner I saw that I could use "touching colors" - Cool!

2balls_v2

Two evenly weighted balls are dropped into a vertical box. Theoretically - how often should the green ball be the first into the box? What is the probability that the red ball will drop first into the box? How many experimental trials did it to get this theoretical probability? What other real life situations give this kind of probability? See complete activity: http://www.mathcasts.org/mtwiki/Activity/2Balls

DiceDifference_v2

Two dice are thrown. I win if the difference between the values is 0, 1 or 2. You win if the difference is 3, 4 or 5. Three chances each! Want to play? See complete activity at: http://mathcasts.org/mtwiki/Activity/DiceDifference

6balls_3R_3G_3Boxes

We have 6 balls - 3 Reds and 3 Greens. We drop them randomly into 3 boxes (2 balls each). The following two events are mutually exclusive and complete. (a) All 3 boxes have 1R/1G. We call this event: MIXED. (b) There will be a box with 2G, a box 2R. a box 1R/1G. We call this event: SEPARATE. Play this applet to find out the probability of each of these 2 events. See complete activity at: www.mathcasts.org/mtwiki/Activity/6Balls3Boxes (Mutually exclusive: no 2 events can occur at the same time; complete: no other event can occur.)

4balls_v2

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Click on "Cat 1 Try" to see the idea. The following two events are mutually exclusive and complete. (a) Both boxes will have 1R/1G. We call this event: MIXED. (b) One box 2G, other box 2R. We call this event: SEPARATE. Play this applet to find out the probability of each of these 2 events. See complete activity at: www.mathcasts.org/mtwiki/Activity/4Balls2Boxes (Mutually exclusive: no 2 events can occur at the same time; complete: no other event can occur.)

2balls

Two evenly weighted balls First project. I hope to expand to more balls and boxes and different kinds of probabilities!