C because if you add them all it equals to 12
Answer:
answer 16 teacher gets 8.43
answer for pet store: 263.44
Step-by-step explanation:
take 3.25 multiply by 3.56 now you get 11.57
20 - 11.57 is 8.43
pet store part time:
take 10.24 multiply it by 22.25 = 227.84
take 1.60 multiply it by 22.25 = 35.6
add 227.84 and 35.6 you get 263.44
They can give them flaws and gave them overcome those flaws! Maybe it causes problems in the long run and they have to fix it to solve those problems?
Answer:
The reason why standard deviation of the entire class is greater than standard deviation of males and females considered separately, is that mean values for males and females are different from each other.
Step-by-step explanation:
The concept of mean is well represented by the following formula
mean = , where x1, x2, xn are the observations and N is the number of observations (population).
Standard deviation represents the distance between each observation and the mean of the population (all observations). The formula for this parameter is:
Standard deviation =√[((x1 - x)² + (x2-x)² + ....+ (xn-x)²)/N-1], where x1, x2,..., xn are the observations and x is the mean value.
In this case you have that each height registered is an observation and the number of observations represents the N value. As you can see if the mean for males is different from that of females their standard deviation will be different too. Usually males have heigths greater than that of females (1.77 vs 1.64, in USA for example), and heights inside each group will be more similar than between groups. Then, when you mix all observation there will be an increase in standard deviation, because you are mixing very different heigths
Answer:
I searched it up:
Step-by-step explanation:
"Adding integers means adding integers with the same signs, while subtracting integers means adding the integers of opposite signs."
Hope this helps :3