What is the median of the data set? [10,15,27,33,33,36,42,47,45,56,78]< br />
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36

Step-by-step explanation:

Cross a number out once on each side. That is, cross out 10 and 78, then 15 and 56, on and on until you get the last number that isn't crossed out. In this case, 36.

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%

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.