Distribution

Question 1

Define normal distribution

Answer 1

a symmetrical spread of frequency data that forms a bell-shaped pattern. the mean, median, and mode are all located at the highest peak.

Question 2

Define skewed distribution

Answer 2

a spread of frequency data that is not symmetrical, where the data clusters to one end.

Question 3

Define positive skew

Answer 3

a type of frequency distribution in which the long tail is on the positive (right) side of the peak and most of the distribution is concentrated on the left.

Question 4

Define negative skew

Answer 4

a type of frequency distribution in which the long tail is on the negative (left) side of the peak and most of the distribution is concentrated on the right.

Question 5

In a normal distribution curve, what percentage of scores should be to either side?

Answer 5

50%

Question 6

In a normal distribution curve, what percentage of scores lie within one standard deviation from the mean?

Answer 6

68.26%

Question 7

On a negative skew, in what order do the measures of central tendencies go?

Answer 7

(from left to right)
mean, median, mode

Question 8

On a positive skew, in what order do the measures of central tendencies go?

Answer 8

(from left to right)
mode, median, mean