The Number of dentists in US using text messaging are 58,800.
What is survey?
Survey is defined as the method to gather information by individual samples to learn about whole thing. Samples are usually chosen randomly so the result is not affected by one way or another.
Now,It is given that 3600 out of 9000 dentists used text messages.
and total number of dentists in the US is 147,000.
So, Total number of dentist in survey using text message = 3600/9000
⇒ Total number of dentist in survey using text message = 4/10
Similarly,
Total number of dentist in US using text message = Total number of dentist in US × Total number of dentist in survey using text message
⇒Total number of dentist in US using text message = 147,000 × 4/10
⇒Total number of dentist in US using text message = 58,800
Hence,the Number of dentists in US using text messaging are 58,800.
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