Answer: 3.64583333333
Step-by-step explanation:
Answer:
X - 111
Y - 104
Z - 76
Step-by-step explanation:
X - Just add 45 and 66
Y - 180 minus 76
Z - 119 minus 43
Answer:
At 95% confidence level, the confidence interval that is likely to contain the percent,
, of all teenagers at the wheel when an accident occurred is given as follows;
12.7% <
< 18.6%
Step-by-step explanation:
The parameters given are as follows;
Sample size, n = 582
Proportion of accidents where teenagers are at the wheel,
= 15.6%
x = 0.156*582 ≈ 91
The formula for the confidence interval is as follows;
![CI=\hat{p}\pm z\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}](https://tex.z-dn.net/?f=CI%3D%5Chat%7Bp%7D%5Cpm%20z%5Ctimes%20%5Csqrt%7B%5Cdfrac%7B%5Chat%7Bp%7D%281-%5Chat%7Bp%7D%29%7D%7Bn%7D%7D)
Where:
z = z value at the confidence level
We therefore have;
![CI=0.156\pm z\times \sqrt{\dfrac{0.156(1-0.156)}{582}}](https://tex.z-dn.net/?f=CI%3D0.156%5Cpm%20z%5Ctimes%20%5Csqrt%7B%5Cdfrac%7B0.156%281-0.156%29%7D%7B582%7D%7D)
![CI=0.156\pm z\times 1.504 \times 10^{-2}](https://tex.z-dn.net/?f=CI%3D0.156%5Cpm%20z%5Ctimes%201.504%20%5Ctimes%2010%5E%7B-2%7D)
At a confidence level of 95%, z = 1.96
The confidence interval at 95% confidence level is therefore;
12.7% <
< 18.6%.
Answer:
14
Step-by-step explanation:
From the question we are given the first term 8,second term 11 and we are to find the third term.
Using the formula:Tn=a+(n-1)d
Where a=first term=8
n=number of terms =3
d= difference between terms( second term -first term)=11-8=3
T3=8+(3-1)3
=8+2(3)
=8+6
The next term =14
£625.44
Step-by-step explanation:
100×13.03%×48