Question

The following data show the number of times different students of a class practice swimming in a month:

3, 5, 7, 3, 4, 4, 2, 1, 3, 5, 2, 3, 7, 2, 3, 4, 1, 2, 4

The dot plot below was made to represent the data.


For which number is the data plotted incorrectly? (4 points)
Question 1 options:

1) 1

2) 3

3) 4

4) 5

Answer 1

okay, how many times does 1 appear in you list of numbers? (not in the dot plot)

Answer 2

how many times does 2 appear? 3? 4?

Answer 3

I would say 1 is plotted incorrectly

Answer 4

why?
can you explain me or you are guessing?

Answer 5

since there are only two "1" in the list, and three "1" in the dot plot

Answer 6

I am not guessing

Answer 7

ok thank you

Answer 8

can you help me with another one?

Answer 9

The number of books in 11 bookshelves in a library is shown below:

23, 41, 27, 25, 31, 21, 21, 45, 56, 37, 58

Use a histogram to organize the data and answer the following question:

Which statement best compares the height of the bars of the histogram?

Answer 10

1) It is equal for intervals 50-59 and 20-29.

2) It is equal for intervals 40-49 and 20-29.

3) It is greater for interval 20-29 than for interval 30-39.

4) It is greater for interval 30-39 than for interval 40-49.

Answer 11

sure

Answer 12

so what its the answer ? I think is A but i still confuse T.T