Question

PLEASE HELP BEEN STUCK FOR HOURS WILL MARK THE BRAINLIEST HAVE TO ANSWER A,B, and C

Answer 1

Answer:

A. 1)5.5 2)4.5 3)5.75 4)6.25 B. 1.75 C. A correct B incorrect C incorrect D correct

Step-by-step explanation:

Mean is a fancy way of saying Average , when calculating average you add all the numbers and divide by how many numbers there are:

A

1.

8+6+3+5=22/4=5.5

2.

5+7+4+2=18/4=4.5

3.

8+7+5+3=23/4=5.75

4.

6+8+4+5=25/4=6.25

B

largest mean is 6.25, smallest mean is 4.5:

Subtract lowest mean from highest mean:

6.25-4.5=1.75

C

A)

this is correct because averaging your average gives an overall average,

B)

if a is correct b has to be incorrect

C)

if D is correct C must be incorrect

D)

The closer they are together, that means more likely to be accurate because they are almost the same

I hope this helps u!

pls pls PLS give a brainliest and a thx ;)

Answer 2

Sample 1 mean is 5.5

sample 2 mean is 4.5

sample 3 mean is 5.75

sample 4 mean is 5.75

range of means is 5.75-4.5 , just the distance between the highest and lowest sample means so it is  1.25

for question c, options 1 and d are correct