2.5.1: Preparation 2.5

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    (1) A digital camera is regularly priced at $350 and it is marked 30% off the regular price. What is the new price for the digital camera?

    (i) $105

    (ii) $245

    (iii) $320

    (iv) $338.40

    (2) The American Diabetes Association reports the following information:

    In general, if you are a man with type-1 diabetes, the odds of your child getting diabetes are 1 in 17. If you are a woman with type-1 diabetes and your child was born before you were 25, your child's risk is 1 in 25; if your child was born after you turned 25, your child's risk is 1 in 100.

    Rank the risk of having a child with diabetes from 1 (highest risk) to 3 (lowest risk).

    ______ Mother with type-1 diabetes who gave birth after turning 25

    ______ Father with type-1 diabetes

    ______ Mother with type-1 diabetes who gave birth before turning 25

    (3) Mark each statement true or false.

    (a) A man with type-1 diabetes has a child. The probability that the child will also have diabetes is about 6%.

    (i) True

    (ii) False

    (b) A 20 year-old woman with type-1 diabetes has a child. The probability that the child will also have diabetes is about 25%.

    (i) True

    (ii) False

    (c) A 30-year-old woman with type-1 diabetes has a child. The probability that the child will also have diabetes is about 1%.

    (i) True

    (ii) False

    Self-Regulated Learning

    An aspect of the work phase is always checking your understanding. One way to check your understanding is to explain how you solved a problem. Explain how you solved Question 1.

    Reflect phase: After checking your understanding, on a scale from 1 to 5, how confident are you that you answered Question 1 correctly? Be sure to incorporate this confidence rating in the table at the end of the assignment.

    After Preparation 2.5 (survey)

    You should be able to do the following things for the next collaboration. Rate how confident you are on a scale of 1–5 (1 = not confident and 5 = very confident).

    Before beginning Collaboration 2.5, you should understand the concepts and demonstrate the skills listed below.

    Skill or Concept: I can …

    Rating from 1 to 5

    read and interpret bar graphs.

    		  

    understand the word percent and the notation used to describe percents (%).

    		  

    use a calculator to divide two numbers and interpret the resulting decimal representation as a percent.

    		  

    understand that a percent may be used to express the likelihood (or probability) of a certain event.

    		  

    This page titled 2.5.1: Preparation 2.5 was last modified on Wed, 15 May 2024 07:37:31 GMT and is shared under a CC BY-NC 4.0 license and was authored, remixed, and/or curated by Carnegie Math Pathways (WestEd) .