Students were randomly selected for a study measuring how many hours per day they spent studying. The results showed an average of 2 hours per day with a standard deviation of 0.3 hours and a margin of error of 0.04. Between which values is the average hours sent on homework expected to fall?

mark branliest

step-by-step explanation:

.6 is 1/2 of 12

the answer is actually d. i just took the test

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

the first one

step-by-step explanation:

just id the test.

answer: it is 8

step-by-step explanation:

you know why its 8