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Katen [24]
3 years ago
10

What is the probability that in a sample of 400 registered voters to at least 290 voted in their most recent local

Mathematics
1 answer:
Alex Ar [27]3 years ago
7 0

Answer:

The probability that in a sample of 400 registered voters at least 290 voted in their most recent local elections is:

= 72.5%

Step-by-step explanation:

Sample of registered voters = 400

Sample of voters that actually voted = 290

Probability = 290/400 * 100

= 72.5%

b) This result above gives the statistic that for every 100 registered voters, 72.5 voters voted.  Probability measures the chance of an event occurring given other events.  Therefore, one can conclude that the voting was at least 72.5%.  Inversely, 27.5% of the registered voters did not participate or cast their ballots in the local elections.

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PIT_PIT [208]

Answer:

1) h=-t+20  

2) 12 inches tall.

Step-by-step explanation:

1) The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

In this case:

y=h (The height of the candle in inches)

x=t (The time in hours)

Then, we can rewrite it:

h=mt+b

Based on the information provided in the exercise, the line passes through these points:

(3,17) and (5,15)

Then, we can find the slope of the line with the formula m=\frac{y_2-y_1}{x_2-x_1}:

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Now we need to substitute the slope and one of the points into  h=mt+b  and then solve for "b":

17=(-1)(3)+b\\\\b=17+3\\\\b=20

Substituting values, we get that the a linear equation that models the relationship between the heigth of the candle and the time, is:

h=-t+20  

2) We must substitute t=8 into the linear equation  h=-t+20 in order to find the height of the candle after burning 8 hours:

 h=-(8)+20\\\\h=12  

4 0
4 years ago
A computer can load 753 megabytes in 20 seconds.which best describes the loading speed of the computer?
givi [52]

Step-by-step explanation:

Well if i understoord you correctly, ur answer would be 37,65 Mbps

6 0
3 years ago
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VMariaS [17]

Step-by-step explanation:

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Triangle ABC has measures a = 2, b = 2, and m∠A = 30° m∠B=30° m∠C=120°. What is the measure of side C?
Andrej [43]

Answer:

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Step-by-step explanation:

The other sides are the same and 30/15 is 2, so 120/15 is 8, so they are all equivalent, so 2*15=30 and its the same for b, 8*15=120

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3 years ago
Point P partitions the directed line segment from A to B into the ratio 3:4. Will P be closer to A or B? Why
IgorLugansk [536]
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