A + 5 = -5a + 5 Solve and show work please
1 answer:
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Answer:
There is a 98% confidence that the true proportion of voters who have voted in the last presidential election lies in this interval.
Step-by-step explanation:
The confidence interval for estimating the population proportion is:
The 98% confidence interval estimate for the proportion of voters who claimed to have voted in the last presidential election was (0.616, 0.681).
The sample taken was of size, <em>n</em> = 1050.
<u>Interpretation</u>:
The 98% confidence interval (0.616, 0.681) for the proportions of voters who claimed to have voted in the last presidential election implies that the true proportion of voters who have voted lies in this interval with 0.98 probability.
Or, there is a 98% confidence that the true proportion of voters who have voted in the last presidential election lies in this interval.
Or, if 100 such samples are taken and 100 such 98% confidence interval are made then 98 of these confidence intervals would consist of the true proportion of voters who have voted in the last presidential election.
Answer:
1920 gallons of water
Step-by-step explanation:
From the question; the amount of water is proportional to volume of the tank
i.e amount of water = volume of the tank
in a tropical fish;
3000 gallons of water = 12.5 m³ ----- Equation (1)
However, in the measurement of shark tank, we have
length = 20cm = 0.2 meters
width = 4 meters
Height = 10 meters
How many gallons of water can the shark tank hold?
From the measurement of shark tank, we can calculate the volume;
The volume of the tank = Length × width × height
Volume of the tank = 0.2 × 4 × 10 = 8 m³
since, the amount of water is proportional to volume of the tank
y ( Gallons of water ) = 8 m³ -------- Equation (2)
Equating equation 1 and 2; we have:
3000 gallons of water = 12.5 m³
y ( Gallons of water ) = 8 m³
y ( Gallons of water ) × 12.5 m³ = 3000 gallons of water × 8 m³
y ( Gallons of water ) =
y ( Gallons of water ) =
y ( Gallons of water ) = 1920 gallons of water
Thus, the shark tank can hold 1920 gallons of water