Question

standardized tests for certain subjects, given to high school students, are scored on a scale of 1 to 5. students who receive a 3 or higher can earn college credit. let ( x ) represent the score on a randomly selected exam. the distribution of scores for one subjects standardized test is displayed in the histogram. what is the shape of the distribution?
o skewed left
o skewed right
o uniform, approximately symmetric
o unimodal, approximately symmetric

Explanation:

• A uniform distribution has all bars of approximately equal height. Here, the heights are not equal.
• A skewed - left distribution has a longer tail on the left. A skewed - right distribution has a longer tail on the right. This histogram does not have a long tail on either side.
• A unimodal distribution has one peak. This histogram has one peak (the middle bar). And the bars on either side of the peak are approximately symmetric in terms of their heights relative to the center.

Answer:

unimodal, approximately symmetric