0/3 Problem D: PRA37GP
Suppose that you wanted to estimate the mean time per evening spent doing homework for students at your school. You decide to
do this by taking a random sample of students ffom your school. You will calculate the mean time spent doing homework for your
sample. You will then use your sample mean as an estimate of the population mean.
The sample mean has sampling variability. Explain what this mean

1e+27

step-by-step explanation:

the answer is 489

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!