A regression was run to determine whether there is a relationship between hours of TV watched per day (x) and number of sit-ups a person can do (y) . The results of the regression are given below. y=ax+b
a=−1.077
b=30.98
r2=0.744769
r=−0.863

Use this to predict the number of sit-ups a person who watches 11 hours of TV can do. Give your answer as a whole number.

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.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

im pretty sure its

(8,15)

step-by-step explanation: