In a normal distribution, the majority of cases fall: Question 1 options: between –1 and +1 standard deviations from the mean. between +1 and +2 standard deviations from the mean. below –3 standard deviations from the mean. below +3 standard deviations from the mean. Question 2 A class consists of 10 male and 30 female students. If one student is randomly selected from the class, what is the probability of selecting a male student? Question 2 options: 10/30 10/40 1/10 1/40 Question 3A z score _____ the mean will always be _____. Question 3 options: below; positive above; negative equal to; negative equal to; zero Question 4 Which of the following is a requirement for a random sample? Question 4 options: Every individual has an equal chance of being selected. The probabilities cannot change during a series of selections. There must be sampling with replacement. All of the other 3 choices are correct. Question 5 The percentile is the: Question 5 options: same thing as a percentage. percentage of scores falling at or below a particular raw score. percentage of scores falling at or above a particular raw score. percentage of scores falling between a particular raw score and the mean. Question 6What percentage of scores fall between the mean and a z score of 1.17? Question 6 options: 6.75 percent 13.59 percent 34.13 percent 37.90 percent Question 7In a normal distribution, what percentage of scores falls below a z score of –2.33? Question 7 options: 0.99 percent 2.12 percent 9.10 percent 40.52 percent Question 8What percentage of scores falls between the mean and 1 standard deviation above the mean? Question 8 options: 0.13 percent 2.14 percent 13.59 percent 34.13 percent Question 9 What is the difference between a normal distribution and other symmetrical distributions? Question 9 options: The mean, median, and mode are all equal. The frequencies of scores decrease as they get farther from the midpoint. A specific percentage of scores must fall within a given area of the curve. All symmetrical distributions are normally distributed. Question 10A specific bell-shaped curve that is defined by the percentage of cases that fall in specific areas under the curve is known as the: Question 10 options: normal distribution. symmetrical distribution. positively skewed distribution. bimodal distribution.

Question

In a normal distribution, the majority of cases fall: Question 1 options: between –1 and +1 standard deviations from the mean. between +1 and +2 standard deviations from the mean. below –3 standard deviations from the mean. below +3 standard deviations from the mean. Question 2 A class consists of 10 male and 30 female students. If one student is randomly selected from the class, what is the probability of selecting a male student? Question 2 options: 10/30 10/40 1/10 1/40 Question 3A z score _____ the mean will always be _____. Question 3 options: below; positive above; negative equal to; negative equal to; zero Question 4 Which of the following is a requirement for a random sample? Question 4 options: Every individual has an equal chance of being selected. The probabilities cannot change during a series of selections. There must be sampling with replacement. All of the other 3 choices are correct. Question 5  The percentile is the: Question 5 options: same thing as a percentage. percentage of scores falling at or below a particular raw score. percentage of scores falling at or above a particular raw score. percentage of scores falling between a particular raw score and the mean. Question 6What percentage of scores fall between the mean and a z score of 1.17? Question 6 options: 6.75 percent 13.59 percent 34.13 percent 37.90 percent Question 7In a normal distribution, what percentage of scores falls below a z score of –2.33? Question 7 options: 0.99 percent 2.12 percent 9.10 percent 40.52 percent Question 8What percentage of scores falls between the mean and 1 standard deviation above the mean? Question 8 options: 0.13 percent 2.14 percent 13.59 percent 34.13 percent Question 9 What is the difference between a normal distribution and other symmetrical distributions? Question 9 options: The mean, median, and mode are all equal. The frequencies of scores decrease as they get farther from the midpoint. A specific percentage of scores must fall within a given area of the curve. All symmetrical distributions are normally distributed. Question 10A specific bell-shaped curve that is defined by the percentage of cases that fall in specific areas under the curve is known as the: Question 10 options: normal distribution. symmetrical distribution. positively skewed distribution. bimodal distribution.

Accepted Answer

It is given that the statement about to the normal distribution. Here, need to find out the correct…

	between –1 and +1 standard deviations from the mean.
	between +1 and +2 standard deviations from the mean.
	below –3 standard deviations from the mean.
	below +3 standard deviations from the mean.

	below; positive
	above; negative
	equal to; negative
	equal to; zero

	Every individual has an equal chance of being selected.
	The probabilities cannot change during a series of selections.
	There must be sampling with replacement.
	All of the other 3 choices are correct.

	same thing as a percentage.
	percentage of scores falling at or below a particular raw score.
	percentage of scores falling at or above a particular raw score.
	percentage of scores falling between a particular raw score and the mean.

	The mean, median, and mode are all equal.
	The frequencies of scores decrease as they get farther from the midpoint.
	A specific percentage of scores must fall within a given area of the curve.
	All symmetrical distributions are normally distributed.

	normal distribution.
	symmetrical distribution.
	positively skewed distribution.
	bimodal distribution.