Video: Using Frequency Tables to Find Percentages

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.

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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.

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