CONVERT RAW SCORE TO STANDARD Z-SCORE AND VICE VERSA

1. 1. What is the symbol for standard deviation?

• λ
• μ
• δ
• σ

2. 2. What is the formula in finding the z-score?

• (X * μ) / σ
• (X - μ) * σ
• (X - μ) / σ
• (X + μ) / σ

3. What is the formula used to convert the z-score to a raw score?

• X = Z - σ + μ
• X = Z σ + μ

• X = Z / σ + μ
• X = Z σ - μ

Tags

CCSS.HSS.ID.A.4

4. Identify the given values of the problem. "The ages of ALS students enrolled at Bato School of Fisheries are normally distributed with a mean of 19 years and standard deviation of 3.5 years. If a student is selected at random, what is the probability that his age is under 22 years? "

Tags

CCSS.HSS.ID.A.4

5. The average monthly salary for first-year teachers in the Department of Education is P21,945. If the distribution is approximately normal with a standard deviation of P3250. How much will a teacher earn in a month if his salary has a z-score of 1.15?

• P25,682.5

• P20,000.00
• P27,500.00
• P23,362.50

Tags

CCSS.HSS.ID.A.4