Video Transcript
The given table shows the
distribution of the number of foreign tourists, in millions, who visited a certain
country in 2010 based on the nationalities. Using the frequency table, find the
percentage of Russian tourists. Give your answer rounded to the
nearest integer.
We need to calculate the percentage
of Russian tourists. We can see from the table that
there were 1.29 million Russian tourists. This was out of a total of 7.62
million tourists altogether. As both of these are in the same
units, we can write the number of Russian tourists out of the total as a fraction,
1.29 over 7.62.
The line in a fraction means
divide, and 1.29 divided by 7.62 gives us 0.169291 and so on. We need to convert this answer to a
percentage. And to convert any decimal into a
percentage, we multiply by 100. Multiplying any number by 100 moves
all the digits two places to the left. So 0.169291 multiplied by 100 is
16.9291 and so on.
We were asked to round our answer
to the nearest integer. This means that the nine in the
tenths column is the deciding number. If the deciding number is five or
greater, we round up. The percentage of Russian tourists
to the nearest integer is 17 percent. If required, we could repeat this
process for the French, German, British, and Italian tourists.
