Statistics

Suppose that heights of newborns are bell shaped with a mean of 6.8 pounds and a standard deviation of 1.3 pounds. What percentage of weights are:

a) Below 6.8 lbs.?

b) Above 8.3 lbs.?

  1. 👍 0
  2. 👎 0
  3. 👁 69
asked by Erik
  1. You seem to have confused heights with weights. Perhaps a typo error.

    a) 50%, since 6.8 is the mean

    b) 8.3 is 1.5 pounds above the mean. That is 1.15 standard deviations. 12.4% are above 8.3 pounds

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. Statistics

    Suppose that heights of newborns are bell shaped with a mean of 6.8 pounds and a standard deviation of 1.3 pounds. What percentage of weights are: a) Below 6.8 lbs.? b) Above 8.3 lbs.?

    asked by Erik on May 4, 2011
  2. Statistics

    Suppose that weights are bell shaped with a mean of 120 pounds and a standard deviation of 10 pounds. What percentage of weights is between 110 and 130 pounds

    asked by Robby on May 14, 2011
  3. statistics

    Heights of women have a bell-shaped distribution with a mean of 158 cm and a standard deviation of 8 cm. Using Chebyshev’s theorem, what do we know about the percentage of Women with heights that are within 3 standard deviations

    asked by slomomo on February 21, 2015
  4. Elementary Statistics

    Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations

    asked by mary on September 4, 2012
  5. Stats

    The heights of women in the US approximately follow a bell shaped curve. What do you think that means?

    asked by Sam on November 11, 2009
  6. Statistics

    The average U.S. yearly capita consumption of citrus fruit is 26.8 pounds. Suppose that the distribution of fruit amounts consumed is bell shaped with a standard deviation equal to 4.2 pounds. a. What percentage of Americans would

    asked by Marnee on July 20, 2017
  7. statistics

    The typical American generates about 3.8 pounds of solid trash per day with a standard deviation of 1.5 pounds. Assuming that the histogram for trash produced per day is aprox. bell shaped, between what two values will 95% of the

    asked by Darci on April 13, 2011
  8. Statistics

    The typical American generates about 3.8 pounds of solid trash per day with a standard deviation of 1.5 pounds. Assuming that the histogram for trash produced per day is approx. bell shaped, between what two values will 95% of the

    asked by Darci on April 12, 2011
  9. statistics

    Heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm and a standard deviation of 9 cm. Using the empirical rule, what is the approximate percentage of the men between the following values? a. 151

    asked by slomomo on February 26, 2015
  10. statistics

    "suppose that IQ scores have a bell-shaped distribution with a mean of 97 and standard deviation of 17.Using empirical rule, what percentage of IQ score are less than 46?"

    asked by Tasha on September 8, 2013

More Similar Questions