Answer:
wher is question
Step-by-step explanation:
Answer:
5/6
Step-by-step explanation:
5÷6=0.83
3÷4=0.75
Answer:
Length of chord=24cm
Step-by-step explanation:
diameter=26cm
Radius(r)=26/2=13
Distance Of The chord from the center Of The circle(x)=5cm
Length of chord=2x√(13^2-5^2)
Length of chord=2x√(169-25)
Length of chord=2x√(144)
Length of chord=2x12
Length of chord=24cm
Answer:
The sample size 'n' = 384
Step-by-step explanation:
<u>Step(i)</u>:-
Given data the margin of error = 0.05
The margin of error of the estimation of a population proportion is determined by
![M.E = \frac{Z_{\frac{\alpha }{2} }\sqrt{p(1-p} }{\sqrt{n} }](https://tex.z-dn.net/?f=M.E%20%3D%20%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%5Csqrt%7Bp%281-p%7D%20%20%7D%7B%5Csqrt%7Bn%7D%20%7D)
<u><em>Step(ii)</em></u>:-
In data not given sample proportion 'p' but
we know that ![\sqrt{p(1-p} \leq \frac{1}{2}](https://tex.z-dn.net/?f=%5Csqrt%7Bp%281-p%7D%20%5Cleq%20%5Cfrac%7B1%7D%7B2%7D)
![0.05 = \frac{1.96 X \frac{1}{2} }{\sqrt{n} }](https://tex.z-dn.net/?f=0.05%20%3D%20%5Cfrac%7B1.96%20X%20%5Cfrac%7B1%7D%7B2%7D%20%7D%7B%5Csqrt%7Bn%7D%20%7D)
cross multiplication, we get
0.05 ×√n = 0.98
![\sqrt{n} = \frac{0.98}{0.05} = 19.6](https://tex.z-dn.net/?f=%5Csqrt%7Bn%7D%20%3D%20%5Cfrac%7B0.98%7D%7B0.05%7D%20%3D%2019.6)
<em>squaring on both sides, we get</em>
<em>n = 384.16≅ 384</em>
<u><em>Final answer</em></u><em>:-</em>
<em>The sample size 'n' = 384</em>
Your answer is 68 have a great day