According to a recent issue of the National Geographic Traveler magazine, the annual average number of vacation days for some countries are as follows : Germany, 35; Italy, 42; France, 37; U. S, 13; Japan, 25; Canada, 26; Britain, 28; Brazil, 34. For the above data, find a) Mean, b) Standard deviation, c) Five number summary, d) Draw the box-and-Whisker plot.'

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

d. all of the above

step-by-step explanation:

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.