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zepelin [54]
3 years ago
5

Write a story problem that can be solved by finding the sum of 506,211 and 424,809 then solve the preoblem

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0
Carlos Made 506,211 labels for the bake sale. Matilda Made 424809 labels. How many do they have in total? Answer:931020
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Your start-up business is looking into the energy usage in the community of south lawndale. your sample size is 12 months. use t
Aleonysh [2.5K]

The confidence interval at 95% level is

7106.87 <  μ< 14255.27

<h3>What is meant be mean and standard deviation?</h3>

The ratio of sum of observations to the total number of observation is known as mean. It is one of the central tendency in the statistics. It gives an idea about the central value present in the data. The most sensitive measure of central tendency is mean. It is very easy to calculate. Mean playa a crucial role in daily life. The two types of means are Arithmetic mean and Geometric mean.

Standard deviation is a measure in the statistics. The amount of variation of a set of values is known as standard deviation. Standard deviation is denoted by σ.

As per given data

90% confident level for amount of electricity used in community of Austin is

X-tx/2(n-1)s/√n < μ < X+ tx/2(n-1)s/√n

Here , n=12 ,  X=10681.07 , s=6893.87

Margin of error = tx/2(n-1)s/√n

=(1.796×6893.87)/√12

=3574.1996

=3574.19(approximately)

Therefore, 90% CI is,

10681.07-3574.19 ≤ μ<10681.07+3574.19

7106.87 <  μ< 14255.27

To know more about mean and standard deviation, visit:

brainly.com/question/14720855

#SPJ4

5 0
1 year ago
What is -22.2 x (-6.1)?<br><br> A. -135.42 <br><br> B. -28.3 <br><br> C. 28.3 <br><br> D. 135.42
harkovskaia [24]

Answer:

the answer is 135.42 lol

3 0
3 years ago
Read 2 more answers
A number subtracted from 90 is 3 times that number
OleMash [197]
90-n=3n hope this helps you
7 0
3 years ago
Read 2 more answers
Which translation was preformed?
Alinara [238K]

Answer:

Rotation was used to transform the figure.

Step-by-step explanation:

Since only one transformation was used, rotating the pre-image ABC 180° counterclockwise around the origin formed the image DEF.

I hope this helped! :-)

6 0
3 years ago
Reginald answered at 78% of the questions on his social studies quiz correctly what fractional part of the question did he not a
Otrada [13]

If Reginald answered 78% correctly out of a total 100%, we can subtract 78 from 100:

100 - 78 = 22

He answered 22% of the question incorrectly. But how do we find the bottom number? Remember what we said earlier. The <u>total</u> is 100%. He got 22% out of 100% wrong. Wouldn't that be \frac{22}{100}?

Now that we know our fraction, we can reduce it. Let's start by dividing our fraction in half:

\frac{22}{100} = \frac{11}{50}

Can we reduce that any more? No, because 11 can not be divided by anything else.

If you want the first fraction, go with \frac{22}{100}, but if they want a reduced fraction, then \frac{11}{50} would be best.

8 0
3 years ago
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