The Lesser Indigo Striped Pondwriggler is an animal whose lifespan is normally distributed, with a mean of 15.4 years and a standard deviation of 3.4 years. What is the probability that a randomly selected Lesser Indigo Striped Pondwriggler has a lifespan that is between 6.8 years and 10.6 years?
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8 years and 10.6 years) to z-scores using the formula: z = (X - μ) / σ where X is the lifespan value, μ is the mean, and σ is the standard deviation. For the lower bound (6.8 years): z1 = (6.8 - 15.4) / 3.4 z1 = -2.53 For the upper bound (10.6 years): z2 = Show more…
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