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Amanda [17]
3 years ago
10

The graph below shows the average daily temperature over the period of a year. Explain how each labeled section of the graph rel

ates to the four seasons.

Mathematics
2 answers:
klemol [59]3 years ago
7 0
Remark
I'm going to assume you are in the Northern Hemisphere. 

Answer
A looks like you are beginning in Winter. The temperature is down quite a bit. That would be about October where I live. B is spring because the temperature is rising but not at it's peak. That would be about April May here. 

C is summer. Glorious warm summer. June July and August.

D is autumn. The temperature is falling and it is just about at it's low peak again. 
natta225 [31]3 years ago
7 0

Answer:

answer is B

Step-by-step explanation:

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An element a basic substance that can’t be
Reil [10]

Answer:

Simplified

Step-by-step explanation:

Examples can be hydrogen, oxygen, gold

4 0
3 years ago
Two opposing opinions were shown to a random sample of 1,500 buyers of a particular political news app in the United States. The
kifflom [539]

Answer:

A) 98% Confidence interval for the proportion of all US buyers of this particular app who would have chosen Opinion B

= (0.51, 0.57)

This means that the true proportion of all thay would chose opinion B can take on values between the range of (0.51, 0.57)

B) For the confidence interval obtained to be valid, the conditions stated must be satisfied and for the sampling distribution to be approximately normal, the number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B must both be greater than 10.

Step-by-step explanation:

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion of all US buyers of this particular app who would have chosen Opinion B = 0.54

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 98% confidence interval for sample size of 1500 is obtained from the z-tables.

Critical value = 2.33

Standard error = σₓ = √[p(1-p)/n]

p = sample proportion = 0.54

n = sample size = 1500

σₓ = √(0.54×0.46/1500) = 0.0128685664 = 0.01287

98% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.54 ± (2.33 × 0.01287)

CI = 0.54 ± 0.02998)

98% CI = (0.51, 0.57)

98% Confidence interval = (0.51, 0.57)

B) The number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B are both greater than 10. Why must this inference condition be met?

For this confidence interval to be obtained using sample data, a couple of conditions are necessary to be satisfied. They include;

- The sample data must have been obtained using a random sampling technique.

- The sampling distribution must be normal or approximately normal.

- The variables of the sample data must be independent of each other.

On the second point, the condition for a binomial distribution to approximate a normal distribution is that

np ≥ 10

and n(1-p) ≥ 10

The quantity np is the actual sample mean which is the actual number of buyers that chose Opinion B while n(1-p) is the number of buyers that did not chose Opinion B.

For the confidence interval obtained to be valid, the conditions stated must be satisfied and for the sampling distribution to be approximately normal, the number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B must both be greater than 10.

Hope this Helps!!!

8 0
3 years ago
Please help!!!!!!!!!!
My name is Ann [436]

Find an easy to read point such as (10, 40).

The ratio of y to x is 40/10 = 4/1.

Now look in your choices and find a point in which y is 4 times x.

The only such point is (5, 20).

Answer: C. (5, 20)

8 0
3 years ago
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Help ASAP!! Find the pronumerals (in 2nd answer)
tatyana61 [14]

Answer:

x=10

y= 6

z= 12

Step-by-step explanation:

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Is y = x3 proportional or non proportional
weeeeeb [17]
No because for it to be anywhere near proportional it would have to be 3x
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