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1. The mean (μ) number of Grade 11 Philippine history books is 539 with a standard deviation (σ) of 16. 88. What is the standard deviation for a sample of 4 different Grade 11 Philippine history books?
2. Tacloban City’s residents have a mean (μ) cholesterol level of 165 mg/dL with a standard deviation (σ) of 54. What is the standard deviation for a sample of 800 Tacloban City residents’ cholesterol levels?
3. The mean (μ) age of the onset of puberty is 13. 5 years old with a standard deviation (σ) of 2. 75. What is the standard deviation of the age of the onset of puberty for a sample of 40,000 observations?
4. The mean (μ) for the Filipino grades/marks of Grade 12 students in a school is 87 with a standard deviation (σ) of 6. 75. What is the standard deviation for a sample of 121 grades/marks?
5. Students in senior high levels have a mean (μ) height of 160 cm with a standard deviation (σ) of 16. What is the standard deviation for a sample of 400 senior high students?
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Sagot :
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