Answer: 16
Step-by-step explanation:
Standard deviation is 2
Margin error for the problem is 1
Probability 95%, that means thet the siginficance level α is 1 – p
α = 1 – 0.95 = 0.05
margin of error (ME) can be defined as follows
ME = Z(α/2) * standard deviation/ √n
Where n is the sample size
Z(0.05/2) = Z(0.025)
Using a z table Z = 1.96
Now, replacing in the equation and find n
1 = 1.96 * 2/ √n
1 = 3.92 / √n
√n = 3.92
n = 3.92^2
n = 15.36 = 16
i hope this work for you
Answer:
Step-by-step explanation:
We know that formula for average rate of change of a function from a to b is
Here f equals h and a =-3 b=5
h(a) = 
and
h(b) = 
h(b)-h(a) =
b-a = 5-(-3) =8
Hence average rate of change is
Answer:
46.7%
Step-by-step explanation:
The fraction of youths preferring printedbooks
= 21/(21+24)
= 21/45
= 21 *100 / 45
= 46.67%
Hey!
The first step to solving this problem would be to multiply 469.82 by 0.085.
<em>New Equation :</em>
469.82 × 0.085 = ?
<em>Solution {New Equation Solved} :</em>
469.82 × 0.085 = 39.9347
Ignore the forty seven at the end of the solution. You're only going to need 39.93. Now we'll add 469.82 and 39.93. This is the sales tax plus the regular price. Which will then bring us to our total.
<em>New Equation :</em>
469.82 + 39.93 = ?
<em>Solution {New Equation Solved} :</em>
469.82 + 39.93 = 509.75
<em>So, 469.82 plus 8.5 sales tax is</em> 509.75.
Hope this helps!
- Lindsey Frazier ♥
I would think so since you have to weigh each person and then add all the weights together and then divide this number by the total number of people weighed.
Would probably mostly hinge on the actual weighing part I think for the data gathering.
