Answer:
the first one is 23
the second one is 70-79
the third one is 11
Step-by-step explanation:
this is because frequency refers to the amount of people who got the scores on the x-axis.
so for the first one you would count up how many people participated i.e. 2+9+7+5 = 23
the second one is asking for the mode test score and mode refers to the most common, so the most common test score is the 70-79 bar
the third one is asking for how many people scored below 80, which is 11 as 2 people scored 60-69 and 9 scored 70-79 on the test (2+9=11)
Hope this helps :)
