A normal distribution has a mean of 52 and a standard deviation of 11. What is...
A normal distribution has a mean of 52 and a standard deviation of 11. What is the median? (Enter an exact number as an integer, fraction, or decimal.)
Homework Answers
as we know that normal distributioin is symmetric and therefore mean and median should be equal
therefore median =52
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A normal distribution has a mean of 52 and a standard deviation
of 11. What is...
1.Assume that x has a normal distribution with the specified mean and standard deviation. Find the...
1.Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 101; σ = 16 P(x ≥ 120) = 2.Suppose X ~ N(5, 9). What is the z-score of x = 5? (Enter an exact number as an integer, fraction, or decimal.) z =
About what percent of the x values from a normal distribution lie within two standard deviations
24. About what percent of the x values from a normal distribution lie within two standard deviations (left and right) of the mean of that distribution? (Enter an exact number as an integer, fraction, or decimal.) _______ % 25. About what percent of x values lie between the mean and one standard deviation (one sided)? (Enter an exact number as an integer, fraction, or decimal.) _______ % 26. About what percent of x values lie between the first and third standard deviations (both sides)?...
A distribution of values is normal with a mean of 157.8 and a standard deviation of...
A distribution of values is normal with a mean of 157.8 and a standard deviation of 21.7. Find P11, which is the score separating the bottom 11% from the top 89%. P11 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20
1.The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly. Find the probability that the sum of the 40 values is greater than 7,400. (Round your answer to four decimal places.) 2.A researcher measures the amount of sugar in several cans of the same soda. The mean is 39.01 with a standard deviation of 0.5. The researcher randomly selects a sample of 100. Find the sum...
A distribution of values is normal with a mean of 248.5 and a standard deviation of...
A distribution of values is normal with a mean of 248.5 and a standard deviation of 89. Find P28, which is the score separating the bottom 28% from the top 72%. Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 232.7 and a standard deviation of...
A distribution of values is normal with a mean of 232.7 and a standard deviation of 54.3. Find P1, which is the score separating the bottom 1% from the top 99%. P1 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 238 and a standard deviation of...
A distribution of values is normal with a mean of 238 and a standard deviation of 93.7. Find the probability that a randomly selected value is between 219.3 and 481.6. P(219.3<x< 481.6) = Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 211.4 and a standard deviation of...
A distribution of values is normal with a mean of 211.4 and a standard deviation of 85.8. Find P96, which is the score separating the bottom 96% from the top 4%. P96 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 47.1 and a standard deviation of...
A distribution of values is normal with a mean of 47.1 and a standard deviation of 24.2. Find P53, which is the score separating the bottom 53% from the top 47%. P53 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 197.3 and a standard deviation of...
A distribution of values is normal with a mean of 197.3 and a standard deviation of 26.6. Find P9, which is the score separating the bottom 9% from the top 91%. P9 = 163 Incorrect Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 238 and a standard deviation of 93.7. Find the probability that a randomly selected value is between 219.3 and 481.6. P(219.3<x< 481.6) = Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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