Mathematics

Question

a book club has 200 members
each member was asked whether he or she prefers fiction or nonfiction books
the results are shown below
a book club has 200 members each member was asked whether he or she prefers fiction or nonfiction books the results are shown below

1 Answer

  • so these are decmials of the accutal total so

    .32=32%
    what makes this question easy is that there are 200 members so to convert the percents into accutall numbers so like .32=32%=64 people (since 200 is 2 times of 100)

    A. fiction of 31-40 compared to 21-30
    fiction 31-40=.38=38%=76 readers
    fiction 21-30=.32=32%=64 readers
    76-64=12
    A is FALSE

    B. so we want to know how many people are 31-40 and prefer fiction
    so .38=38% and 38% of 200=76
    B is FALSE

    C 43 members are 21-30
    so we look at the total row for the 21-30 people and see that .43 or 43% or 86 people are in the 21-30 age group
    C is FALSE

    D. 140 members prefer fiction
    look at the total column for fiction and see that .70 like fiction .70=70%=140 people
    D is TRUE

    so A,B,C are FALSE
    D is TRUE