Question

The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.

0 to 102


70 to 86


62 to 94


54 to 102

Answer 1

@Twistrose

Answer 2

what do you think

Answer 3

i have to go with d

Answer 4

ok do you know what the empirical rule is

Answer 5

no mam

Answer 6

please dont call me that im only 13

Answer 7

ok it is this: The empirical rule, also known as the three-sigma rule or the 68-95-99.7 rule, provides a quick estimate of the spread of data in a normal distribution given the mean and standard deviation.

Answer 8

do you understand this

Answer 9

naw

Answer 10

what the answer is

Answer 11

ok i looked up and easier one let me get it

Answer 12

k

Answer 13

do you understand this wait thats the same hang on let me fix it ill delete the previous

Answer 14

kinda but whats the answer

Answer 15

hang on im trying to figure it out

Answer 16

k

Answer 17

i cant get it im getiing wrong answer im tryingto askmy sister and friends im sorry

Answer 18

@-AngleWarrior-

Answer 19

@Ms-Brains

Answer 20

@Maddiem

Answer 21

lol

Answer 22

okay give me a sec to figure it out :p

Answer 23

ight

Answer 24

I think its B but I'm not fore sure

Answer 25

i want u to be certain sweatheart

Answer 26

@MMajor14 can you help me with this? Is B right?