In a population, the mean is known to be 1.78 and the standard deviation is known to be 0.190.

Suppose a random sample of size 100 is taken from this population. What can be said about the distribution of the sample mean?

Select one:

• It is approximately normal, with mean 1.78 and standard deviation 0.002
• It is approximately normal, but with unknown mean and unknown standard deviation.
• It is approximately normal, with mean 1.78 and standard deviation 0.060.
• It is approximately normal with mean 1.78, but the standard deviation is not known.
• It is approximately normal, with mean 1.78 and standard deviation 0.190.
• It is approximately normal, with mean 1.78 and standard deviation 0.019.
• There is not enough information to say anything about this distribution.