Question
A marketing company that relies on calling mobile phones, wanted to research if age group and type of response, were independent. The company took a
A marketing company that relies on calling mobile phones, wanted to research if age group and type of response, were independent. The company took a random sample of mobile numbers, categorised them into two different age groups, and then recorded the response as one of three options: call answered, voicemail, call unanswered. The observed frequencies are summarized in the following table.
Age group | |||
40 years | > 40 years | ||
Response | Unanswered | 57 | 98 |
Voicemail | 25 | 85 | |
Answered | 27 | 24 |
What is the expected frequency for respondents greater than 40 years old who answered the call? Please give your answer correctly rounded to two decimal places.
Answer:
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