Mean scores for elementary schools had 1228 and a standard deviation of 82. What would be the z-score for an elementary school whose mean score was 1300

The z-score for an elementary school whose mean score was 1300 is 0.878

Step-by-step explanation:

The z-score can be calculated from the formula

Where represents the z score

represents the score

is the mean

and is the standard deviation

From the question,

Mean scores for elementary schools had 1228 and a standard deviation of 82, that is

To determine the z-score () for an elementary school whose mean score was 1300, that is

Hence, the z-score is

Hence, the z-score for an elementary school whose mean score was 1300 is 0.878.

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i