Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds. The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. Give the distribution of X.Find the percent of her laps that are completed in less than 133 seconds. (Round your answer to two decimal places.)The fastest 3% of her laps are under how many seconds? (Round your answer to two decimal places.) sec. Enter your answers to two decimal places. The middle 70% of her lap times are from seconds to seconds.
Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds. The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. Give the distribution of X.Find the percent of her laps that are completed in less than 133 seconds. (Round your answer to two decimal places.)The fastest 3% of her laps are under how many seconds? (Round your answer to two decimal places.) sec. Enter your answers to two decimal places. The middle 70% of her lap times are from seconds to seconds.
Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds. The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. Give the distribution of X.Find the percent of her laps that are completed in less than 133 seconds. (Round your answer to two decimal places.)The fastest 3% of her laps are under how many seconds? (Round your answer to two decimal places.) sec. Enter your answers to two decimal places. The middle 70% of her lap times are from seconds to seconds.
Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.28 seconds. The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. Give the distribution of X.Find the percent of her laps that are completed in less than 133 seconds. (Round your answer to two decimal places.)The fastest 3% of her laps are under how many seconds? (Round your answer to two decimal places.) sec. Enter your answers to two decimal places.
The middle 70% of her lap times are from seconds to seconds.
Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.
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