Rate of change is slope
So change in y/change in x
150/3=50
Answer:
Hey! Here is your answer simplified!
Step-by-step explanation:
4
x
3
−
4
x
2
−
4
x
−
8
Hope this helps! ❤
Answer:
The 95% confidence interval for the difference of the two populations means is ( 2.4, 41.6)
Step-by-step explanation:
Confidence intervals are usually constructed using the formula;
point estimate ± margin of error
In this question we are required to construct a 95% confidence interval for the difference of two populations means. The point estimate for the difference of two population means is the difference of their sample means which in this case is 22.
Assuming normality conditions are met, since we have no information on the sample sizes, the margin of error will be calculated as;
margin of error = z-score for 95% confidence * standard deviation of the difference of the sample means
The z-score associated with a 95% confidence interval is 1.96
The standard deviation of the difference of the sample means is given as 10
The 95% confidence interval for the difference of the two populations means is thus;
22 ± 1.96(10) = 22 ± 19.6 = ( 2.4, 41.6)
Answer:
You would do the change in y over the change in x.
That means you subtract your y values and that's the numerator. Subtract your x values and that is your denominator. Then simplify.
(4 - 4)
______
(-2 - 2)
Step-by-step explanation:
Answer:
$51.48
Step-by-step explanation:
Percent left: 100%-67%=33%
33% can also be expressed as the fraction 33/100
Then, 33% of 156 is 156*33/100=51.48
