The dot plot shows the number of words students spelled correctly on a pre-test. which statement best describes the shape of the graph?

a.) the graph is skewed right.

b.) the graph is nearly symmetrical.

c.) the graph is skewed left.

d.) the graph is perfectly symmetrical.

Let's think of this problem easily by looking at it instead of going through rigorous mathematics.

When a graph is skewed right, most of the values are to the left side.

When a graph is skewed left, most of the values are to the right side.

Perfectly symmetrical is that both sides, with respect to the median, are same. Here mean and median is equal.

Nearly symmetrical would really close to perfect symmetry, only varying a bit on both sides. Mean would be approximately equal to median.

Now counting the dots as well as looking closely, we can rule out skewed right and skewed left. Now, is the graph perfectly symmetrical? No! So the correct answer is "nearly symmetrical". Correct choice is B.

ANSWER: B

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32