Answer:
to 
Step-by-step explanation:
Given :The owner of a restaurant is reviewing customer complaints. In a random sample of 227 complaints, 57 complaints were about the slow speed of the service.
To Find :Create a 95% confidence interval for the proportion of complaints that were about the slow speed of the service.
Solution:
n = 227
x = 57
Formula of confidence for proportion: 
to 
z at 95% is 1.96
Substitute the values in the formula :
Confidence for proportion: 
to 
Confidence for proportion: to
Hence 95% confidence interval for the proportion of complaints that were about the slow speed of the service is to
The area of right triangle=1/2*leg1*leg2=20 cm2
Answer:
m=4
Step-by-step explanation:
We are to find the value of m in the question
1.75+0.75m=4.75
Let's start by substrating 1.75 from both sides
0.75m=3
We will have to make m the subject of formula by dividing both sides by 0.75
m=4
Therefore the final answer for m is 4
Answer:
The answer is
<h2>y + 2x = 2</h2>
Step-by-step explanation:
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
To find the equation of the parallel line we must first find the slope of the original line
The original line is 2x + y = 1
We must first write the equation in the general form above
That's
y = - 2x + 1
Comparing with the general equation above
Slope = - 2
Since the lines are parallel their slope are also the same
Slope of parallel line = - 2
So the equation of the line using point
( - 1 , 4) and slope - 2 is
<h3>
</h3>
We have the final answer as
<h3>y + 2x = 2</h3>
Hope this helps you
A relative frequency histogram is the data display that Helena should use if she wants to know the percentage of the teams that scored higher than her team.
<h3>What is a relative frequency histogram?</h3>
A relative frequency histogram is a frequency histogram that compares each class to the total number of items.
Since she wants a data display, a histogram is required to show the graphs of the scores of the various teams.
However, she needs to combine the histogram with relative frequencies to show the ratio of the frequency of her team's score to the total frequency.
Thus, Helena requires a relative frequency histogram to achieve the data display of percentages of the teams' scores.
Learn more about relative frequencies at brainly.com/question/26177128
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