Scribe Post for October 14, 2008

4:06 PM

Today in class we did the following
1. Go over #10, #4, #13 on the work sheet: Which Italian Insects Often Fall in Love?
2. We did another worksheet, but we didn't finish it in class so it's for homework.

Worksheet: Which Italian Insects Often Fall in Love?

Some people had some trouble doing question #10, #4, #13 so Mr. H showed us the solutions.

I'm going to show you how to solve number 10 letter A. If you spin the spinner 600 times, about how many times would you expect it to stop on: a. \$1, b. \$5, c. \$10.

A) P= FO/ TPO

6/12 or 1/2 or 50% Fifty percent of 600 is 300 so 300 is the answer.

The second thing we did in class was the work sheet. I will show you 4 questions on the first page.

#8 A number from 9- 20 is drawn at a random. Express the probability as a percent.

P ( a number divisible by two)= FO/TPO, 6/12 or 1/2 or 50%

9,10,11,12,13,14,15,16,17,18,19,20 TPO

10,12,14,16,18,20 FO

#10 You roll a number cube numbered from 1-6. Express the probability as a decimal.

P (2)= FO/ TPO, 1/6 or 0.17

1,2,3,4,5,6 TPO

2 FO

#12 A jar contains 4 pink, 11 green, 19 blue, 6 violet marbles. A marble is drawn at a random. Express the probability as a percent. Round to the nearest percent.

P (not green)= FO/ TPO, 29/40 or 73%

All of the marbles TPO

29 marbles are not green FO

#14 A jar contains 11 navy and 12 white marbles. A marble is drawn at a random. Express the probability as a decimal. Round to the nearest hundredth.

P (white)= FO/ TPO, 12/23 or 0.52

All the marbles TPO

12 marbles (white) FO

On the other side of the sheet there is another set of questions I'm going to show you two of them.

#5 You flip a coin and toss a 1-6 number cube.

P (not tails)= FO/ TPO 1/2

P(not 3)= FO/ TPO 5/6

Then I multiply the two fractions together 5/6 x 1/ 2

6 x 2 is 12, 1 x 5 is 5 so it's 5/ 12

That's how I solve it. I know it is right but, I think Mr. H wants us to do a probability tree. Sadly I didn't, I took a shortcut.

#6 You roll a number cube numbered 1-6 You then spin a spinner with 4 sections each with a different color. The spinner has the colors pink, red, white, and gray.

P(2)= FO/ TPO 1/6

P (white)= FO/ TPO 1/4

Then I multiply the two fractions together 6 x 4 is 24, 1 x 1 is 1. So the answer is 1/24. Another shortcut.

9 Responses to "Scribe Post for October 14, 2008"

October 14, 2008 at 7:08 PM
good job angela! i never knew you write a lot ahah at least im not the only one :) but its good, a lot of details and very understandable :)
October 14, 2008 at 7:11 PM
You explain the questions really well. Thanks for scribing.
October 14, 2008 at 7:16 PM
GREAT job angela ! very understaadable!
October 14, 2008 at 8:24 PM
GOOD job Angela! :)
October 14, 2008 at 9:08 PM
Good job Angela, your post has lots of information >8D
October 15, 2008 at 5:08 PM
great job!! I really understood it!!
October 15, 2008 at 9:46 PM
good job angela, you explained it very well and had lots of pictures .
October 15, 2008 at 9:47 PM
good job angela well done
October 16, 2008 at 7:23 PM
hey great job! u could add more color, but you still did a great job!