Part A:
Given that in a sample of 400 registered voters, 204 were democrats, i.e. n = 400, <span>

</span>The 95% confidence interval for the proportion of registered democrats voters in the population is given by:

Part B:
Given that t<span>here
are 169 million registered voters in the US, the interval for
the number of registered democrats in the population is given by
[0.461(169,000,000), 0.559(169,000,000)] = (77,909,000, 94,471,000)
</span>
Answer:
The answer would be 10 tickets because 400 divided by 40 equals 10
Step-by-step explanation:
Answer:
can we go with D. 54 ?
the height and length is 9 and 6
9x6= 54
Answer:
See explanation
Step-by-step explanation:
not sure what class this is for but I\ll try. Each traveller has a 21 km drive so their fare should be equal.
method 1) each traveller can pay for 21 km worth when they get out
method 2) Curly can pay the full fare and Andy and Bob can pay him back later (they're brothers so this should be easy to manage)
Answer:
a) 30
b) 144
c) 4
d) 900
Step-by-step explanation:
a) 6 + 24 = 30
b) 6 * 24 = 144
c) 24 ÷ 6 = 4
d) 