What was the mean score on the quiz? A 10-item statistics quiz was given to 30 students. The
table below gives the scores received along with the
corresponding frequencies.
O 7.5
O 8.5
Score
Frequency
5
1
6
2
7
5
8
5
9
7
10
10
O 9
O 10

The answer is 41.7 because 1.39 times 30 is 41.7

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c