Mathematics, 16.06.2020 16:57 mckenzieg

Basil asks 40 students how many books they bought last year. the chart shows information about the number of books they each bought. a) what is the percentage of those students who bought 20 or more books?

b) work out an estimate for the mean number of books bought.
please show the full working out.
Number of students who bought 0-4 books= 9
number of students who bought 5-9 books= 10
number of studenst who bought 10-14 books= 13
number of students who bought 15-19 books= 2
number of studenst who bought 20-24 books= 6
please show the full working out

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 19:30

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Answers: 3

Answer

Mathematics, 21.06.2019 20:00

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

Answers: 2

Answer

Mathematics, 21.06.2019 21:00

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

Answers: 1

Answer

Mathematics, 21.06.2019 21:00

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.

Answers: 2

Answer

You know the right answer?

Basil asks 40 students how many books they bought last year. the chart shows information about the n...

Questions

Mathematics, 09.12.2021 17:00

A fence 7 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will re...

SAT, 09.12.2021 17:00

I will hug you now and hug...

Mathematics, 09.12.2021 17:00

6. Interest rates fluctuate with the economy. In the 1980s, the highest CD interest a. If $1,000 is invested at 16% interest, compounded continuously,...