In a study of 250 adults the average heart rate was 70 bpm assume the population of heart rate is known to be approximately normal with a standard deviation of 12 bpm what does a margin of error of two for the 98% confidence interval of the average beats per minute mean

step-by-step explanation:

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12

the answer would be 0.54

it would be c. 25 units