According to Eurostat, 55.2% of households in Italy have one child, the highest percentage in the Euro zone. A random sample of 160 Italian households was selected. The standard error of the proportion is .

0.04

Step-by-step explanation:

In this case we must use the following formula to be able to find the standard error, which would be the square root, of the probability for its complement divided by the population:

SE=

Now, knowing that p = 0.552 and n = 160 we replace and we are left with:

SE =  

SE =

SE = 0.039

Which means that the standard error of the proportion is 0.04

answer: sherk

step-by-step explanation:

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the number 100 represents the number of trials in the experiment.

49/100 represents the experimental probability of the coin landing heads up.

step-by-step explanation: