The brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. a sample of 10 tubes results in x overscript bar endscripts equals 3 1 7 period 2 and compute a 99% prediction interval on the brightness of the next tube tested.

step-by-step explanation:

i dont get

answer: for each 3 girls there is 2 boys . 3: 2

hope this ! (:   mark me as brainliest if you can

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared