The data describes a patient’s heart rate beats per minute at different times over several days find the mean median and range of the data 86,87,89,87,86,88,90,85,82,86,83,85 ,84,86

b) 36

step-by-step explanation:

18 times 2 is 36

c

step-by-step explanation:

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%