subject
Mathematics, 25.03.2021 15:50 Mayrah7486

Erica wants to know how many books on average are in school libraries in her county. She randomly calls 50 school libraries in her county and finds out how many books they have. She adds the number of books together and divides by 50. Her conclusion is there are an average of 18,000 books in a school library. Erica's conclusion is bias. She wants schools to buy more new books.
bias. She wants schools to buy more new books. ,

invalid. Her sample size is too small.
invalid. Her sample size is too small. ,

invalid. Her sample size is too large.
invalid. Her sample size is too large. ,

valid. She used a representative sampl

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).
Answers: 1
question
Mathematics, 21.06.2019 19:30
∆red ≅ ∆ by rule will give brainiest if possible
Answers: 2
question
Mathematics, 21.06.2019 20:30
Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?
Answers: 1
question
Mathematics, 21.06.2019 22:40
Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?
Answers: 2
You know the right answer?
Erica wants to know how many books on average are in school libraries in her county. She randomly ca...
Questions
question
Mathematics, 21.04.2020 20:29
question
Mathematics, 21.04.2020 20:30
question
Mathematics, 21.04.2020 20:30