Step-by-step explanation:
u should number the graph first 1- how ever many not alot ill say through 10 and den on the bottom y/ X axis are negatives and den u have to count the numbers to wherever the point is and if I don't make sense plz text me ♀️
$732 I believe, hope this helps! <3
Answer:letra b
Step-by-step explanation:
You would have to add 47.50 + 122 to get 169.5 dollars. to get the amount of money he made in the summer, you would have to multiply 169.5 by 2 which would equal 339 dollars. so he made 339 dollars over the summer :)
(a) The mean of the number of different species of plants in some gardens is 4.5 .
(b) The standard deviation of the number of different species of plants in some gardens is 2.12 (Approximately)
It is given in the question that the number of different species recorded are:-
1 2 3 4 4 5 5 6 7 8
We have to find the mean and standard deviation of the given data of the number of plants of different species.
(a) We know that, the formula for mean is :-
Sum of all the observations/ Total number of observations
Hence,
Mean = 
(b) Standard deviation = 
Where,
X = each value
m = mean
N = number of values
Hence,


Standard deviation =
(approximately).
To learn more about mean, here:-
brainly.com/question/13451489
#SPJ4