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alex41 [277]
4 years ago
5

A study was completed in Florida. In southern Florida, the study involved 3,000 patients; 54% of them experienced flulike sympto

ms during the same month. The study had a margin of error of 1.8%. What does that mean for the study? The confidence interval is between 52.2% and 55.8%. The confidence interval is between 50.4% and 57.6%. The confidence interval is between 53% and 55%. The confidence interval is between 30% and 97.2%.
Mathematics
1 answer:
polet [3.4K]4 years ago
6 0

Answer:

A (52,2%, 55,8%)

Step-by-step explanation:

To get the confidence interval, we have to add the margin of error to the point estimator.

The middle of the interval is 54%, and the ME is 1.8%. Don't forget that this means ±1.8%!

54 - 1.8 = 52.2%

54 + 1.8 = 55.8%

So our confidence interval is (52,2%, 55,8%) and the answer is A.

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Y intersect is the answer
3 0
4 years ago
Rectangle abcd is similar to rectangle pqrs given that ab =14cm bc =8cm and pq=12cm calculate the length of qr
ohaa [14]

Answer: 6.8571 (Round as needed)

Hope this is correct

Step-by-step explanation:

This is a simple ratio problem

Using the similarity statement we can say 14:12, (ab:pq)

That is our ratio.

So we do 14/12 = 8/x, we solve this using algebra to get our answer.

Hope this is correct.

7 0
3 years ago
If Valerie deposited 12,000 into an account threat earns 15% simple annual interest how much money will she have after 3 years
Ad libitum [116K]

Answer:

The amount which she will have into account after 3 years is  17,400  unit

Step-by-step explanation:

Given as :

The principal which is deposited into an account = 12,000  unit

The rate of interest simple annual = 15%

The Time period = 3 years

Let The amount which she have after 3 years = A  unit

<u>From simple Interest method</u>

Simple Interest = \frac{Principal\times Rate\times Time}{100}

Or , Simple Interest = \frac{12,000\times 15\times 3}{100}

Or,  Simple Interest = \frac{540,000}{100}

∴    Simple Interest = 5,400  unit

Now,

Amount = Principal + Simple Interest

Or, A =  12,000  unit + 5,400  unit

∴   A =  17,400  unit

Hence The amount which she will have into account after 3 years is  17,400  unit . Answer

6 0
3 years ago
HELPPPP Mr. Baker calculated the area of 4 different styles of rugs. The areas of the 4 rugs are shown. I NEED IT ASAP
Oxana [17]

Answer:

C.

Step-by-step explanation:

Square, Oval, Rectangular, Circle

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6 0
3 years ago
100 POINTS!! ASAP - Please SHOW WORK!!
Zielflug [23.3K]

Answer:

<em>h</em> = 435.779 m

Step-by-step explanation:

Step 1: Define variables

∅ = 5°

Hypotenuse (the road) = 5000 meters

We need to find height (or the vertical leg on the triangle) = <em>h</em>

Step 2: Use trig

sin∅ = opposite over hypotenuse

sin5° = <em>h</em>/5000

Step 3: Evaluate

5000sin5° = <em>h</em>

<em>h</em> = 435.779 m

6 0
3 years ago
Read 2 more answers
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