Alisha bought a collection of 500 old pennies. she chose 20 pennies from the collection and recorded their dates. seven pennies
2 answers:
Answer: The best estimate of the percentage is 35%.
Step-by-step explanation: Given that Alisha bought a collection of 500 old pennies. She chose 20 pennies from the collection, recorded their dates and note that seven pennies had dates earlier than 1980.
We are to find the best estimate of the percent of pennies in Alisha's collection that have dates earlier than 1980.
Since, 7 out of 20 pennies from the collection had dates earlier than 1980.
So, the percentage of of pennies in Alisha's collection that have dates earlier than 1980 will be
Thus, the best estimate of the percentage is 35%.
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