A certain group of test subject had pulse rates with a mean of 81.7 beats per minute and a standard deviation of 12.6 beats per minute

The answer would be d

Some stress reducing strategies that a lot is: aromatherapy, yoga, meditation, quiet walks in the park, or listening to relaxing music.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.