A dot plot is a statistical chart made up of data points shown on a basic scale, usually using filled in circles. The correct option is C.
How does the dot plot work?
Suppose we're measuring something whose values are numeric. For each value of that thing we observe, we plot a dot above that value in the number line. Thus, the total number of dots in the dot plot tells us the total number of observations of the values of that thing we did.
Thus, suppose if we observed the value 'x', then we will make a dot above 'x'. If there is already a dot over 'x', then we will make a new dot over that dot.
If instead of only observations, the table of unique observation and frequency is given, then we plot dots that many times as the count written in the frequency table. Thus, if it is written that the value 2 has 3 as its frequency, then we plot 3 dots one over the other above the value 2 on the horizontal axis.
As we can see that the number of dots above the number of siblings equals 0 is 6, while the number of siblings equals 1, 2, 3, 4 has 4, 5, 2, 1 dots respectively. Therefore, the representation of the given dot plot can be done as,
# of siblings 0 1 2 3 4 5 6 7 8 9 10
students 6 4 5 2 1 0 0 0 0 0 0
Hence, the correct option is C.
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