Question

The graph below displays how many pieces of candy Timmy and his five friends each received last Halloween. Within how many standard deviations of the mean do the values fall?

Answer 1

helpppppppppppppppppppp!~!!!!!!!!!!!!!!

Answer 2

@KeemoD143 , I'm not sure to solve this problem, but let's try together to solve?

Answer 3

The mean equal to (16+19+25+32+38+40)/6, right?

Answer 4

hpw do we start ////?

Answer 5

Right?

Answer 6

pellet conffusing

Answer 7

What's the mean of 10 and 10? It's 10 because (10+10)/2 = 10
Of 10 and 5? (10+5)/2 = 7,5
Of 10 , 10 and 5? (10+10+5)/3 = 8,33

So, mean is a formula like this: (x1+x2+x3+...+xn)/n

Answer 8

In the graph you have the values 16,19,25,32,38 and 40

So (the sum of the values)/(quantity of values) = mean of values

Answer 9

@KeemoD143 you closed the question, why?

Answer 10

accident

Answer 11

But you understand this?

Answer 12

What I wrote?

Answer 13

checking it now wouldnt the answer be out of 1 or 4 ??

Answer 14

my result is approximately 10...

Answer 15

10 isnt an answer

Answer 16

standard deviation (I`m not sure if you know) is how much dispersion from the mean. ( How far the values is of the mean).

to find the standard deviation, calculate the mean ( I wroted above) and then subtract each value from the mean and square the result of each subtraction:

mean = (16+19+25+32+38+40)/6 = 28.33

(16 - 28.33)^2

(19 - 28.33)^2
.
.
.


then, sum all the values above:

(16 - 28.33)^2 + (19 - 28.33)^2

and then divide this sum for (number of elements -1), in this case, 5 ( 6-5)

and then square root this value

^^

its confusing, right?