AP PSYCHOLOGY

PSYCHOLOGYS HISTORY APPROACHES

SCIENTIFIC FOUNDATIONS OF PSYCHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Dr. Kleiman gives an exam where most of the students receive failing grades and only a few students receive high scores. When the exam scores are plotted, the distribution will be
A
positively skewed
B
negatively skewed
C
symmetrical
D
impossible to predict without more information
Explanation: 

Detailed explanation-1: -Answer and Explanation: If a set of exam scores forms a negatively skewed distribution, we can likely conclude that A) most of the students had relatively high scores. In a negatively skewed distribution, the high-frequency data are to the right.

Detailed explanation-2: -In a positive skew, the tail of a distribution curve is longer on the right side. This means the outliers of the distribution curve are further out towards the right and closer to the mean on the left.

Detailed explanation-3: -The arithmetic mean is the most common measure of central tendency. The mean is essentially the balancing point of a distribution of scores.

Detailed explanation-4: -What is a Positively Skewed Distribution? In statistics, a positively skewed (or right-skewed) distribution is a type of distribution in which most values are clustered around the left tail of the distribution while the right tail of the distribution is longer.

There is 1 question to complete.