
Standard deviation = 6 The normal distribution shown on the right represents the heights, in cm,...
In a normal distribution, if x bar represents the mean and o represents the standard deviation what percent of information falls between x bar and x bar + o? a. 34 b. 50 c. 68 d. 95
The mean height for a normal distribution of heights is 65 inches and the standard deviation is 3 inches. Let x represent height. a) P(62< x < 68) b) P(x >70) c) P(x<65)
Assume the world human population heights follow a perfect normal distribution with standard deviation of 20 and mean of 150, what percentage of the population would have a height between 130 and 170?
Women’s Heights Assume that Women’s heights are normally distributed with mean μ=63.6 in. and standard deviation σ=2.5 in. Use StatKey to answer the following questions. Include a screenshot from StatKey for each question. Find the percent of women with heights between 58.6 and 68.6 inches. Find the percent of women with heights between 60 inches and 65 inches. Find the height of a woman in the 95th percentile, (taller than 95% of other women.) Life Expectancy Part 4 From the...
A normal distribution has a mean of 8 and a standard deviation of 2 . Use the 68-95-99.7 rule to find the percentage of values in the distribution between 8 and 12 .
Question 32 In a normal distribution with a mean of 90.00 and a standard deviation of 10, what percentage of the cases lies between scores of 80 and 907 50% 68% 34% 100%
6. The heights of men selected from a particular population have a normal distribution with mean 68 inches and standard deviation 4 inches. a. Find the percentage of men in the population who are taller than 72 inches. b. . Find the percentage of men who are between 64 and 74 inches tall C. Suppose 25% of men in this population are taller than Ralph. How tall is Ralph?
(1 point) The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches Use what you know about a normal distribution and the 68-95-99.7 rule to answer the following NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10 inches, enter: "10 INCHES" (without the quotes and with a space between the number...
3. The heights of all adults in a large city have an approximately normal distribution with a mean of 68 inches and a standard deviation of 4 inches. a) Find the probability that a randomly chosen height is less than 66 inches. b) Write the sampling distribution of sample mean for any sample size. Find the probability that the mean height of a random sample of 100 adults would be between 67.5 inches and 69 inches.
Heights of men on a baseball team have a bell-shaped distribution with a mean of 172 cm and a standard deviation of 7 cm. Using the empirical rule, what is the approximate percentage of the men between the following values? a.158 cm and 186 cm b. 165 cm and 179 cm