Joey asked all of his friends how many times they visited the zoo this year. The line plot shown here displays the responses tha
t Joey recorded. How many of Joey's friends visited the zoo at least 1 time?
A) 21 B) 22 C) 23 D) 24
I NEED THIS ANSWER ASAP
A) 21 B) 22 C) 23 D) 24
I NEED THIS ANSWER ASAP
2 answers:
You might be interested in
The correct option will be: C) 0.84
<u><em>Explanation</em></u>
Formula for Correlation coefficient :
First, for each point(x, y), we need to calculate x², y² and xy .
Then, we will find sum all x, y, x², y² and xy, which gives us Σx, Σy, Σx², ∑y² and Σxy
<em>(Please refer to the attached image for the table )</em>
Here we got, ∑x = 44 , ∑y = 183 , ∑x² = 362 , ∑y² = 6575 and ∑xy = 1480
'n' is the total number of data set, which is 7 here.
So, plugging those values into the above formula..........
So, the value of the correlation coefficient is 0.84
