An airline wants to survey customers about their overall satisfaction. They take a random sample of 1,000 customers who have flown in the past month and email them a survey. The email also offers those who complete the survey a 25 gift card that can be used almost anywhere.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

the answer is:

mean: 6

mad: 2.14

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

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