Answer:
There are 132 red marbles and 12 black marbles
Work:
I made a ratio of 11:1 and multiplied both sides by 12 which gave me 132:12
132+12=144
intercept=b0=75
Step-by-step explanation:
The least squares estimate of the intercept b0 can be computed as
b0=ybar-b1*xbar.
ybar=average number of shares of company stock=525.
xbar= average number of years employed=22.5.
slope=b1=20.
Thus,
intercept=b0=ybar-b1*xbar
intercept=b0=525-20*22.5
intercept=b0=525-450
intercept=b0=75.
Thus, the estimate of intercept b0=75.
4/25=0.16=16%
3/11=0.27=27%
