Consider a random variable X that is normally distributed. Complete parts (a) through (d) below. (This is a reading assessment question Be certain of your answer because you only get one attempt on this question.) (a)If a random variable X is normally distributed, what will be the shape of the distribution of the sample mean? a. Normal b. Skewed left c. Skewed right d. Cannot be determined (b) If the mean of a random variable X is 30, what will be the mean of the sampling distribution of the sample mean? (c) As the sample size n increases, what happens to the standard error of the mean? A. The standard error of the mean remains the same. B. The standard error of the mean increases C. The standard error of the mean decreases

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

i need a picure

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have