Q11Written answer
“The quick brown fox jumps over the lazy dog”
Examine the above sentence carefully and note the numbers of letters in each word. Treating the number of letters as a variable, prepare a frequency array for this data.
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ANSWER
Counting the letters in each of the 9 words: The (3), quick (5), brown (5), fox (3), jumps (5), over (4), the (3), lazy (4), dog (3). The number of letters takes only whole values, so it is a discrete variable and is classified as a frequency array.
| Number of letters in a word | Words | Frequency (number of words) |
|---|---|---|
| 3 | The, fox, the, dog | 4 |
| 4 | over, lazy | 2 |
| 5 | quick, brown, jumps | 3 |
| Total | 9 |
The frequencies add up to 4 + 2 + 3 = 9, which equals the number of words in the sentence.