Select the correct answer
which data set has a wider spread? why?

set a: {9, 11, 24, 11, 4, 20, 16, 7, 18, 15, 28, 6}
set b: {9, 12, 15, 3, 21, 24, 5, 9, 16, 21}
a. set a
b. set b
has a wider spread because
a. its mean is greater
b. its range is greater

Which account has the highest effective annual interest rate? not necessary but show how you got your answer.a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.