Assume the population is bell-shaped. Between what two values will approximately 95% of the population be?...

Question

Question

Assume the population is bell-shaped. Between what two values will approximately 95% of the population be?

Approximately 95% of the population values will fall between _____ and ______ .

math Statistics-And-Probability

Answer 1

Answer #1

95% of population values falls exactly within 1.96 (or approximately 2) times standard deviation from the mean.

Answer 2

Similar Homework Help Questions

A distribution of numbers is approximately bell-shaped. If the mean of the numbers is 129 and...

A distribution of numbers is approximately bell-shaped. If the mean of the numbers is 129 and the standard deviation is 15, a. between what two numbers would approximately 68% of the values fall? between _____ and ______ b. Between what two numbers would 95% of the values fall? between _____ and _______ c. Between what two values would 99.7% of the values fall? between ______ and ______
Assume total cholesterol value for a certain population is approximately bell shaped with a mean of...

Assume total cholesterol value for a certain population is approximately bell shaped with a mean of 200 mg/100 ml and a standard deviation of 20 mg/100ml. What is the proportion that an individual picked at random from this population will have a cholesterol level between 200 mg/100 ml and 240 mg/100 ml? a. 47.7% b. 53.5% c. 50%
15.When a distribution is bell-shaped, approximately what percentage of data values will fall within 1 standard...

15.When a distribution is bell-shaped, approximately what percentage of data values will fall within 1 standard deviation of the mean? a. 50% c. 95% b. 68% d. 99.7% 21. If the mode is to the left of the median and the mean is to the right of the median, then the distribution is _________ skewed.

Data are drawn from a bell-shaped distribution with a mean of 95 and a standard deviation...

Data are drawn from a bell-shaped distribution with a mean of 95 and a standard deviation of 6. a. Approximately what percentage of the observations fall between 83 and 107? (Round your answer to the nearest whole percent.) b. Approximately what percentage of the observations fall between 77 and 113? (Round your answer to the nearest whole percent.) c. Approximately what percentage of the observations are less than 83? (Round your answer to 1 decimal place.)
13. Using the Empirical Rule of a bell-shaped distribution, approximately what percent of data values lie...

13. Using the Empirical Rule of a bell-shaped distribution, approximately what percent of data values lie within two standard deviations of the mean?
Consider a bell-shaped symmetric distribution with mean of 128 and standard deviation of 3. Approximately what...

Consider a bell-shaped symmetric distribution with mean of 128 and standard deviation of 3. Approximately what percentage of data lie between 119 and 128? A)68% B)99.7% C)49.85% D)47.5% E)95%

10) Suppose that a distribution of test scores is approximately symmetric and bell-shaped and the middle...

10) Suppose that a distribution of test scores is approximately symmetric and bell-shaped and the middle 95% of scores are between 72 and 84. What are the mean and standard of this distribution? Mean 78, SD-3
The empirical rule states that, for data having a bell-shaped distribution, the percentage of data values...

The empirical rule states that, for data having a bell-shaped distribution, the percentage of data values being within one standard deviation of the mean is approximately t of Select one: a. 33%. b, 50% C. 68%. d. 95%.
The Empirical Rule states that for bell-shaped distributions, about 68% of the values fall within 1...

The Empirical Rule states that for bell-shaped distributions, about 68% of the values fall within 1 standard deviation of the mean. The heights of women at a large university are approximately bell-shaped, with a mean of 64 inches and standard deviation of 3 inches. Use this information to answer the questions. (a) What is the probability that a randomly selected woman from this university is 67 inches or taller? (Give the answer to two decimal places.) (b) What is the...

For bell shaped data with a mean of 85 and a standard deviation of 29, approximately...

For bell shaped data with a mean of 85 and a standard deviation of 29, approximately A) 2.5% of the values lie above_______ B) 16% of the values lie below________ C)0.15% of the values lie above_______