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xxTIMURxx [149]
3 years ago
10

A company made 675 in ticket sales. They sold 100 tickets. How much did the company make per ticket, if each ticket cost the sam

e amount?
Mathematics
1 answer:
Alika [10]3 years ago
6 0
Each ticket was $6.75
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Fifteen SmartCars were randomly selected and the highway mileage of each was noted The analysis yielded a mean of 47 miles per g
laiz [17]

Answer: a. 47 plusminus (1.753*(5 ÷ 3.8730)

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 5

n = number of samples = 15

z represents the test statistic

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the test statistic score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 15 - 1 = 14

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.90 = 0.1

α/2 = 0.1/2 = 0.05

the area to the right of z0.05 is 0.05 and the area to the left of z0.05 is 1 - 0.05 = 0.95

Looking at the t distribution table,

z = 1.753

Margin of error = 1.753(5 ÷ 3.8730)

Confidence interval = 47 ± 1.753(5 ÷ 3.8730)

8 0
3 years ago
9(-6X-2) -7 (-10X-2)
Maksim231197 [3]
9(-6x-2)-7(-10x-2)
Simplify, by distributing the 9 and the -7
-54x-18+70x+14
Combine like terms
16x-4 is the simplified expression

Hope this helped!
3 0
3 years ago
What is a strategy to find 4 x 275
g100num [7]
4*200+4*70+4*5, or you can just use a calculator.
4 0
3 years ago
Read 2 more answers
Miracle sells 28 dozens of donuts on Wednesday. Each dozen cost $18. How much is one
Nutka1998 [239]

Answer:

$1.5

Step-by-step explanation:

if each dozen cost $18, we need to divide.......18/12........because 12 is a dozen.

18/12 = 1.5

4 0
3 years ago
If f(3) = 9, what is f(1)<br>​
Vaselesa [24]

Answer:

3

Step-by-step explanation:

3*3=9

1*3=3

8 0
3 years ago
Read 2 more answers
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