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The average height of sunflowers in a field is 64 inches with a standard deviation of 3.5 inches. Describe a normal curve for the distribution, including the values on the horizontal axis at one, two, and three standard deviations from the mean. b) If there are 3,000 plants in the field, approximately how many will be taller than 71 inches?

1 Answers

Givenμ = 64σ = 3.5a)μ - 3σ = 53.5μ - 2σ = 57.0μ - σ = 60.5μ = 64.0μ + σ = 67.5μ + 2σ = 71.0μ + 3σ = 74.5b)(71 - 64)/3.5 = 2.0z = 0.9772n = 3000*(1 - 0.9772) ≈ 68... Show More

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