Answer:
64.428
Step-by-step explanation:
well to find the mean we add all of the numbers up and then divide it by the amount of numbers in the sequence
so if we add all of the numbers up it will give us
451
then if we divide that by the number of numbers in the sequence which is 7 then that will leave us with
around 65 or exactly it would be
64.428
Answer:
19
Step-by-step explanation:
From the question we have been given this data
y=ax+b
a=−1.077
b=30.98
r2=0.744769
r=−0.863
Where
X = number of situps
Y = number of hours spent watching tv
We have x = 11
Inputting this into the formula we have
Y = (-1.077)(11) + 30.98
Y = −11.847 + 30.98
Y = 19.133
Which is approximately 19
Therefore we conclude that a person who watches TV for 11 hours can do 19 situps.