Which of the following statements describes sampling error? The discrepancy between the sample mean and the sample standard deviation.
The discrepancy between the observed mean of one group in the sample and
the observed mean of another group in the sample.
The discrepancy between a sample estimate of a population parameter and the
real population parameter.
The discrepancy between two population parameters of interest.

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.

Aiko jumped rope for 20 min and stopped at 8: 05 when did she start