Question

The 8th grade class took a trivia test. There were 50 questions on the test. The tallies in each row of the table show the number of students whose score lies in the interval described by that row. Match the numbers with the question.

cumulative frequency for 31-40 answers right Read total number of students Read

relative frequency (in %) of students getting 31-40 answers right Read

cumulative relative frequency (in %) for 31-40 answers right

Answer key
A. 50
B. 32
C. 78
D. 39

I got confused

Answer 1

Apparently there are 50 students in the class,
to find relative frequencies, divide frequency by 50 and make it a percent

Answer 2

what is answer key for? don't you have to fill in the rest of the table

Answer 3

yeah i have to match the numbers with the frequency's

Answer 4

Frequency - count the tally marks
cumulative frequency - add above frequency to previous total
relative frequency - divide frequency by 50, make percent
relative cumulative frequency - divide cumulative frequency by 50, make percent

Answer 5

thanks so much :)

Answer 6

Okay, frequency is 16
Cumulative frequency is 39
you can do the rest of the math....oh, haha, didnt see that Dumbcow had already told you what to do...

Answer 7

its fine and thank you

Answer 8

haha, no problem!

Answer 9

it just took me 10 minutes of staring at it to figure out what to do, lol

Answer 10

After dumbcow explained it took me a while too