5. the management at a bank would like to estimate the mean number of credit cards college
students have in their wallets. they would like to create a 98% confidence interval with a
maximum error of 1 card. assuming a standard deviation of 3.25 cards, what is the
minimum number of college students they must include in their sample?

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

no i do not : ( what is it?