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.)

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

If a random variable X is normally distributed, what will be the shape of the distribution of the sample mean?

So long mean is a linear combination of normal independent variates, then the shape of distribution of the sample mean is normal.

Step-by-step explanation:

So long mean is a linear combination of normal independent variates, then the shape of distribution of the sample mean is normal.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!