Asked by Nana
Use of the internet for shopping is increasing dramatically, but still is somewhat age dependent. When a popular web site that sells books asked the age of users who bought products from them over the internet, they obtained the following data. What is the probability that a buyer on this web site is aged 60-69?
Age Group Number
10 - 19
1,915
20 - 29
3,719
30 - 39
2,983
40 - 49
767
50 - 59
445
60 - 69
253
70 - 79
64
Age Group Number
10 - 19
1,915
20 - 29
3,719
30 - 39
2,983
40 - 49
767
50 - 59
445
60 - 69
253
70 - 79
64
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