What do researchers learn about the normal distribution from knowledge of the standard deviation?
What do researchers learn about the normal distribution from knowledge of the standard deviation?
Homework Answers
Add Answer to:
What do researchers learn about the normal distribution from
knowledge of the standard deviation?
In a normal distribution, the standard deviation is 20, what test score do you need to...
In a normal distribution, the standard deviation is 20, what test score do you need to be in the top 2.5%? please help no mean is given if there was one i wouldn't ask
The mean of a normal probability distribution is 340; the standard deviation is 12. About 68%...
The mean of a normal probability distribution is 340; the standard deviation is 12. About 68% of the observations lie between what two values? About 95% of the observations lie between what two values? Practically all of the observations lie between what two values?
The mean of a normal probability distribution is 500; the standard deviation is 14. a. About...
The mean of a normal probability distribution is 500; the standard deviation is 14. a. About 68% of the observations lie between what two values? Value 1 Value 2 b. About 95% of the observations lie between what two values? value a Value 1 Value 2 c. Practically all of the observations lie between what two values? Value 1 Value 2
The mean of a normal probability distribution is 400; the standard deviation is 18. a. About...
The mean of a normal probability distribution is 400; the standard deviation is 18. a. About 68% of the observations lie between what two values? Value 1 Value 2 L b. About 95% of the observations lie between what two values? Value 1 Value 2 ences c. Practically all of the observations lie between what two values? Value 1 Value 2
Consider a normal distribution with mean 25 and standard deviation 5. What is the probability a...
Consider a normal distribution with mean 25 and standard
deviation 5. What is the probability a value selected at random
from this distribution is greater than 25? (Round your answer to
two decimal places.)
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 = 14.9; σ = 3.5
P(10 ≤ x ≤ 26) =
Need Help? Read It
Assume that x has a...
a. Consider a normal distribution with mean 20 and standard deviation 4. What is the probability...
a. Consider a normal distribution with mean 20 and standard deviation 4. What is the probability a value selected at random from this distribution is greater than 20? (Round your answer to two decimal places. b. 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 = 14.3; σ = 3.5 P(10 ≤ x ≤ 26) = c. Assume that x has a normal...
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 normal distribution has a mean equal to 46. What is the standard deviation of this normal distribution if 2.5% of the...
A normal distribution has a mean equal to 46. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 51.88? (Round your answer to two decimal places.)
0.In a normal distribution, plus and minus 2 standard deviations from the mean will include about...
0.In a normal distribution, plus and minus 2 standard deviations from the mean will include about what percent of the observations? A) 50% B) 99.7% C) 95% D)68% 21. What is the area under the normal curve between z -0.0 and z-2.0 A) 1.0000 B) 0.7408 C) 0.1359 D) 0.4770 22. Which of the following is NOT a characteristic of the normal probability distribution? A) Positively-skewed B) Bell-shaped C) Symmetrical D) Mean Mode and median are all equal 23. A...
A normal distribution has mean 50 and standard deviation 4. Approximately what proportion of this normal...
A normal distribution has mean 50 and standard deviation 4. Approximately what proportion of this normal distribution lies above 58?
The mean of a normal probability distribution is 500; the standard deviation is 14. a. About 68% of the observations lie between what two values? Value 1 Value 2 b. About 95% of the observations lie between what two values? value a Value 1 Value 2 c. Practically all of the observations lie between what two values? Value 1 Value 2
The mean of a normal probability distribution is 400; the standard deviation is 18. a. About 68% of the observations lie between what two values? Value 1 Value 2 L b. About 95% of the observations lie between what two values? Value 1 Value 2 ences c. Practically all of the observations lie between what two values? Value 1 Value 2
Consider a normal distribution with mean 25 and standard
deviation 5. What is the probability a value selected at random
from this distribution is greater than 25? (Round your answer to
two decimal places.)
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 = 14.9; σ = 3.5
P(10 ≤ x ≤ 26) =
Need Help? Read It
Assume that x has a...
0.In a normal distribution, plus and minus 2 standard deviations from the mean will include about what percent of the observations? A) 50% B) 99.7% C) 95% D)68% 21. What is the area under the normal curve between z -0.0 and z-2.0 A) 1.0000 B) 0.7408 C) 0.1359 D) 0.4770 22. Which of the following is NOT a characteristic of the normal probability distribution? A) Positively-skewed B) Bell-shaped C) Symmetrical D) Mean Mode and median are all equal 23. A...
Most questions answered within 3 hours.
-
Little’s Law: Val d’Costa is a world famous ski village in the
French Alps. Because of...
asked 25 minutes ago -
Find the absolute error D for the calculation if A + B/C=D A=
9.4 +/- 0.4...
asked 38 minutes ago -
New Air Heating and Cooling, manufactures furnaces and central
air units. The company pride itself on...
asked 52 minutes ago -
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 2 hours ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 4 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 6 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 6 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 8 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 8 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 8 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 9 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 9 hours ago