Today in class students completed the Probability Test. Tomorrow we will begin to look at data analysis and what makes a good random sample.
Yesterday in class students learned more about independent and dependent probability events. Today we reviewed theoretical, experimental, independent and dependent probability events.
Answers to Pretest #1-12
1. 1/2 7. 26 - 5 = 21 so 21/26
2. 1/225 8. 5/6
3. 6/6 = 1 9. 2/52(1/4) = 2/208 = 1/104
4. 39/52 = 3/4 10. 10/28(6/27) = 60/756 = 5/63
5. Dependent, 16/2652 = 4/663 11. 13/52(12/52) = 156/2704 = 3/52
6. Independent, 1/2(4/6) = 4/12 = 1/3 12. 4/11(3/10) = 12/110 = 6/55
Today in class students worked to understand the probability of compound events - when one event is followed by another. Sorry folks, had back to back meetings this afternoon followed by a late appointment, and I left my copy of the class work at school so I cannot post the answers tonight. We will work together tomorrow to correct anything missed.
Today in class students completed the theoretical and experimental examples and moved into the area of compound events - a combination of events that occur, like rolling a die AND drawing a card from a stack.
Today in class students completed the probability notes page that includes theoretical and experimental probability. We began looking at ways to calculate the probability of combinations of events happening.
Today in smart block students completed the percent test, and at regular class time we began a discussion and a page of notes about probability.
Today in class students began the Percent Test. We almost finished it.
Today in class students reviewed the percent quiz and practiced other problems to review for the upcoming test tomorrow.
More practice problems w/answers below:
1. Tyler ate dinner at Applebee's and his meal costs $35.62. If he wants to leave an 18% tip, how much will this add to his bill?
2. Tyler must also pay 7.5% tax on his meal. How much will this add to his bill?
3. What will be the total cost of Tyler's meal at Applebee's?
4. Phil makes a base salary of $1,200 per month. He also earns a 6.5% commission on each house he sells. If Phil sells a house for $132,000, how much will he earn for the sale?
5. How much will Phil earn for the month if this is his only sale?
6. Nathaly wants to buy a car that costs $25,500. If the interest rate on her loan is 2.5% for a period of 5 years, how much will the interest be?
7. How much will Nathaly end up paying for the car?
8. 4.5 is what percent of 90?
9. 50 is 10% of what number?
10. What is 15% of 20?
11. Katherine is buying a sweater for 34.99. She has a 20% coupon. What is the discount price for the sweater?
12. What will the tax be on Katherine's sweater if sales tax is 7.5%?
13. How much will Katherine's sweater cost in all?
14. The WLMS 7th grade band had 70 members last year. this year the band has grown to 89 members. What is the percent change?
15. In December 2016, the industry median car price was $35,421. In January 2017, the price was $34,968. What is the percent decrease in the car prices?
2. $ 2.67
Today in class students practiced finding and using the simple interest formula.
Answers to HW: SPIDER TOWING A FRIED EGG
Today in class students worked out another tax percent problem, then split up into two groups to begin to explore simple interest.