The following contingency table gives the results of a sample survey of Sowetan male and female respondents regarding their preferred mobile phone service provider.

What is the probability of selecting a respondent who does not prefer Cell C?

a.
0.2250

b.
0.50

c.
0.3750

d.
0.65

e.
0.7750

Answers

Answer 1

The probability of selecting a respondent who does not prefer Cell C is 0.775

How to determine the probability?

The complete question is in the attached image


From the attachment, we have

Prefer cell C = 90

Total = 400

So, the number of respondents that do not prefer cell C is

Do not = 400 - 90

Do not = 310

The probability is then calculated as:

P = 310/400

Evaluate

P = 0.775

Hence, the probability of selecting a respondent who does not prefer Cell C is 0.775

Read more about probability at:

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The Following Contingency Table Gives The Results Of A Sample Survey Of Sowetan Male And Female Respondents

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Write the multiplicative identity using 9.

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Answer:

3*3

Step-by-step explanation:

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Glven the value of cos 60° -0.5, enter the sine of a complementary angle. Use an
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cOS 60º= ___ º ≈___

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Answer:

-0.12

Step-by-step explanation:

60 divided -0.5= -0.12

if Lauren robed (22+34) bread from the bread factory how much bread would she have.

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Answer:

22 + 34 = 56

Step-by-step explanation:

um you just add

Answer:

56 bread

Step-by-step explanation:

22 + 34 = 56

When solving quadratic equation, what do the X value stand for as it relates to plotting the graph of the equation?

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Step-by-step explanation:

step 1. The x values refer to the domain of the function.

step 2. if you set y = 0 and solve the quadratic equation the x values refer to the point the graph crosses the x axis.

7. What is the largest of three consecutive integers whose sum is 39.
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B. 14
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The answer would be A not 100% sure
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17 out of 20 lung deserves are curable; what is the percentage of lung diseases that are curable? Yes, but how did you get that answer

Answers

Answer:

85%

Step-by-step explanation:

This problem can be solved by dividing the number of cured cases by the total number of cases (17/20). In order to verify this you can see what number 20 can be multiplied in order to get 100 (5). You can then multiply this by 17 in order to get the number of cured cases out of 100 (the definition of percent)

PLEASE HELP ASAP!!!
Which is a solution to the following system of inequalities?
4x - 3y<9
x+3y>6

А(-2, 1)

B(3, 1)

C(0,4)

D(1,1)

Answers

Answer:

B.

Step-by-step explanation:

its the same as saying..

4x - 3y = 9

x + 3y = 6

add both equation together

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i.e X = 3

substitute x= 3 in equation 2

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Kendall is Jamal's older brother. The sum of their age is 39 the difference of their age is 9. How old are Kendall and Jamal?
Write and solve the system of equations.

Answers

Answer:

Kendall is 24 and Jamal is 15.

Step-by-step explanation:

39 - 9 = 30

30 ÷ 2 = 15

15 is Jamal's age.

15 + 9 = 24

24 is Kendall's age.

657 is decreased by 3% and then increased by 3%

Answers

Answer:

675

Step-by-step explanation:

675 is decreased by 3% and then increased by 3%. Hence, no change occurred.

The answer would be 657 because the 3% cancels out eachother since it’s -3 then +3

Hope this helps

Have a great day/night

Feel free to ask any questions

What number between 0 and 100 meets the following criteria? It is a multiple of three, a multiple of five, and an odd number. When you multiply the digits, you get an even number. When you add the digits, you get an odd number.

Answers

Answer:45

Step-by-step explanation:

9x5=45

15x3=45

4x5=20

4+5=9

If f(7) = 22, then
f^-1(22) = [?]

Answers

Answer:

it equals 7

Step-by-step explanation:

its just a rule, there is no step by step solution. if f(x)= y, then f^-1(y) = x

Autumn buys 5 hats at $8.99 each. How much does she spend?

Answers

Answer:

Autumn spends $44.95 On hats. Why would she need 5 hats? I don’t know.

Step-by-step explanation:

5 hats, all costing $8.99

You do 5*8.99, and this gives you $44.95

Answer:

5 x 8.99 = 44.95

Step-by-step explanation:

helppppppppppppppppppp

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Answer:

c

Step-by-step explanation:

3a + 2 = 2a + 7

a +2 = 7

a = 5

Answer:

I believe it's A.) [tex]\frac{9}{5}[/tex]

It can though, be C.) 5

I might be wrong about A.

please help me ASAP thank you

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Answer:

Step-by-step explanation:

Hi! I am having a hard time with this question. Can anyone help me out? I only need to answer the questions with the red circles

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Answers: cos A=b/a, sin J=j/l, tan K=k/j

Explanation: The trig ratios are SohCahToa or Sin(o/h), Cos(a/h), and Tan(o/a).

When A is the reference angle, b is the adjacent side and a is always the hypotenuse (Cah).
When J is the reference angle, j is the opposite side and l is always the hypotenuse (Soh).
When K is the reference angle, k is the opposite side and j is the adjacent side (Toa).

If it takes 6 workers to paint a house in 48 hours how will it take 4 workers to paint the same house?

Answers

Step-by-step explanation:

6 worker do the painting of house = 48 hours

1 worker will take = 48/6 = 8 hours

4 worker will take. = 4× 8 = 32 hours

to paint the house

plz mark my answer as brainlist plzzzz vote me also .

hope this will be helpful to you ☺️.

Answer:

96 hours

Step-by-step explanation:

48 / 6 = 8

8 hours per worker.

4 x 8 = 24 x 2 = 48

So 96 hours

Hope that helps!

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Answer:

[tex]x = \frac{1}{2} [/tex]

[tex]x = - \frac{3}{2} [/tex]

Juan wants to eat fewer than 800
Calories at lunch. The table shows the
menu at the school cafeteria with the
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each meal.

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The two meals are green beans and cod dogs and pizza slice and carrots the total cost is 4.85$

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Answers

Answer:

Thus, 5/11 is the simplified fraction for 55/121 by using the GCD or HCF method. Thus, 5/11 is the simplified fraction for 55/121 by using the prime factorization method.

I hope it's helpful!

Question 5 of 10
Which of the following is most likely the next step in the series?
CO

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C will be the answer as 1st figure have 6 side,2nd figure have 5 side,3rd figure have 4 side then last one will have three side

Answer:

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9 inches. In the drawing, 2 inches represents
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Answers

Answer:

width is 13.5 yards

Step-by-step explanation:

2" / 3 yds = 9" / 'x' yards

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In March of 2018, a survey asked 801 US adults whether they had at least one subscription to a video-streaming service. Of the 801 participants in the survey, 457 indicated they subscribed to at least one video-streaming service. What is the correct 95 percent confidence interval for the proportion of all US adults who would say they subscribe to a video-streaming service?

Answers

Answer:

The 95% confidence interval for the proportion of all US adults who would say they subscribe to a video-streaming service is (0.5362, 0.6048).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

Of the 801 participants in the survey, 457 indicated they subscribed to at least one video-streaming service.

This means that [tex]n = 801, \pi = \frac{457}{801} = 0.5705[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5705 - 1.96\sqrt{\frac{0.5705*0.4295}{801}} = 0.5362[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5705 + 1.96\sqrt{\frac{0.5705*0.4295}{801}} = 0.6048[/tex]

The 95% confidence interval for the proportion of all US adults who would say they subscribe to a video-streaming service is (0.5362, 0.6048).

HELPPP WILL MARK BRAINLIEST!!!!!!!!!!!!


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Answers

Answer:

2 is your answer lemme know if I'm right

Answer:

2

Step-by-step explanation:

The smallest value within that equation would be 2 since all of the other numbers are have more value than 2 does.

A car travels 208 miles in 3 hours and 15 minutes. How many miles does it travel per hour?​

Answers

Answer:

64 miles

Step-by-step explanation:

3 hours and 15 minutes = 3.25 hours (since 15 minutes is a quarter of an hour)

so 208 miles in 3.25 hours can be written as

208 miles / 3.25 hrs = 208/3.25 miles/hrs (or miles per hour)

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4x9? i have a math test on times

Answers

Answer:

the answer is 36

.......

Answer:

4x9? i have a math test on time

Step-by-step explanation:

Is 36

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HEGF is a trapezoid
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Answers

gowositiieieifirii3ieidigkrid

Problem 2

An online retailer advertises the following shipping and handling fees for every order:


Order Amount ($)

0 – 49.99

50 – 75.99

76+

Shipping and Handling ($)

3.95

11.95

5.95


The sales tax in Arizona on online orders is 5.6%. Use this information to answer the following questions.

**Assume that the shipping and handling is added after the sales tax is applied to the order.

Part a)

Using the information above, write an equation that represents the total cost as a function of the order amount in a customer’s “cart”. (Remember: Identify your input and output variables, and use proper notation – I recommend you handwrite your function and add a picture in to this document)



Part b)

Genevieve, who lives in Prescott, has a cart total of $74.50. How much will her total cost be? (Remember: Show all your work for full credit)


Part c)

Rafael, who lives in Tucson, paid $89.20 for his items. How much was his cart total? (Remember: Show all work, and make sure you get all of the answers)

Answers

Answer:

Let the 'cart' total is x and total payment is y.

The sales tax is 5.6% added to the 'cart' amount and then shipping and handling fee added.

Part A

There are three intervals as below and function added accordingly:

0 < x ≤ 49.99      ⇒ y = x + 5.6% + 3.95 = 1.056x + 3.9550 ≤ x ≤ 75.99    ⇒ y = x + 5.6% + 11.95 = 1.056x + 11.95x ≥ 76                  ⇒ y = x + 5.6% + 5.95 = 1.056x + 5.95Part Bx = 74.50, this falls in the second intervaly = 74.50*1.056 + 11.95 = $90.62 (rounded )Part C

y = 89.20, this is close to the number we got in part B and we assume it is same - the middle interval.

89.20 = 1.056x + 11.951.056x = 89.20 - 11.951.056x = 77.25x = 77.25 / 1.056x = 73.15 (rounded )

-----------------------------------------

Note. Shipping and Handling charges seems incorrectly ordered. If so the answers above all should change accordingly.

Solve the equation x-20.7=9.5 for x

Answers

The answer will come out to 30.2
x= 30.2, solve by isolating x.
x= 20.7 + 9.5

An airport has two long-term parking lots. The cost to park, y, in each lot for x days is shown in the tables.

A system of linear equations can be used to determine on which day the cost to park is the same for both lots. One of the equations in the
system is y=6x. What is the other equation in the system?

Answers

Answer:

y = 4x + 12

Step-by-step explanation:

Hey there,

For Lot A I found the slope to be 4/1. You can do this by picking two points and finding the change in y over the change in x, or you can just look at the graph and realize that to get from one y variable to the other you're adding 4 and to get from one x variable to the other you're adding one. That means it's equal to 4/1 which is the same thing as 4. We know that at 1 the cost is $16. The y-intercept has to be equal to 12, meaning that they started off with $12 and are gaining $4 every day.

I hope this helps :)

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