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Multiple Choice Math Questions Set 1 (Page 7)

Question 1: What is the common difference between Jin’s salaries?

Method:

  1. Subtract Jin’s salaries from one of the years from the year that is right after it. Example: "53,000 - 50,000".
  2. Verify the answer by repeating this process with another set of years. Example: "56,000 - 53,000".
  3. If the answer is consistent, that is your common difference.

Question 2: Find the sum of Ana’s salary over 5 years

Method:

  1. Identify "n" (number of years).
  2. Identify "a_1" (starting salary).
  3. Identify "a_n" (final salary).
  4. Use the formula: "S_n = (n / 2) * (a_1 + a_n)".

Question 3:

Method:

  1. Take the sum of Ana’s salary (from Question 2) and subtract it from Jin’s salary sum ("280,000").

Multiple Choice Math Questions Set 2 (Page 14 - Gender Wage Gap)

Question 1: The Asian man’s annual median salary

Method:

  1. Find "19% of 70,000": "0.19 * 70,000".
  2. Add this amount to "70,000".

Question 2: Wage gap difference between Asian and Hispanic men/women

Method:

  1. Identify the wage gap percentage for Asians and Hispanics from the graph.
  2. Subtract the Hispanic percentage from the Asian percentage.

Question 3: Order the wage gap percentages

Method:

  1. Identify and order the given percentages from least to greatest.

Question 4a: Find the mean wage gap percentage

Method:

  1. Identify the given percentages: "4%, 13%, 19%, 20%".
  2. Calculate the mean: "Sum and divide by 4".
  3. Compare with the wage gap percentage for all races ("16%").

Question 4b: Find the median wage gap percentage

Method:

  1. Order percentages from least to greatest.
  2. Find the middle two values and average them.
  3. Compare with the wage gap percentage for all races ("16%").

Question 4c: Is the mean or median more accurate?

Hint: Which one equals the percentage for all races?