Question

Which of the following describe a set of data whose histogram approximates a normal curve?

Check all that apply.
A. The histogram of the data is exactly the same as the normal curve.
B. Most of the observations are near the mean of the data set.
C. All of the data values have to be positive.
D. The sum of the data values must be 1.
E. The observations trail off at values far from the mean.

Answer 1

WABLO

Answer 2

gtg

Answer 3

a,d is all i got

Answer 4

it a

Answer 5

its A

Answer 6

Most of the observations are near the mean of the data set.
Yes --> empirical rule says that 68% of the values are within one standard deviation of the mean

Answer 7

All of the data values have to be positive.
NO

Answer 8

The histogram of the data is exactly the same as the normal curve.
NO, not exactly, but close

Answer 9

The observations trail off at values far from the mean.
YES --> less than 1% of the values are more than 3 SD's from the mean

Answer 10

The sum of the data values must be 1.
NO. cumulative relative frequency is 1, the data values can be anything

Answer 11

there

Answer 12

did i do good inky

Answer 13

i use more lead than ink srry

Answer 14

oh wait graphite

Answer 15

back on @coltjoco @jakashaka123

Answer 16

yayyy

Answer 17

yeah

Answer 18

hehe

Answer 19

im workin on english i finished algebra

Answer 20

;*

Answer 21

:*