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Anastasy [175]
2 years ago
6

I’m sorry I’m bad at math and I need help

Mathematics
1 answer:
Natali [406]2 years ago
5 0

A or B

I'm confuseddd omg

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Does anyone wanna go on zooom
alina1380 [7]

Answer: no lol

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The average annual premium for automobile insurance in the United States is $1411. A representative sample of annual premiums fo
Harrizon [31]

Using confidence interval concepts, it is found that:

a) The point estimate is the sample mean.

b) The confidence interval is: \overline{x} \pm T\frac{s}{n}

c) If $1411 is between the bounds of the interval yes, otherwise no.

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

  • At item a, it asks to provide a point estimate for the population mean, which is the sample mean \overline{x}

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

Item b:

  • In the spreadsheet, it is possible to find the <em>standard deviation for the sample</em>, thus, the t-distribution is used.
  • The confidence interval will be given by:

\overline{x} \pm T\frac{s}{n}

In which:

  • \overline{x} is the sample mean.
  • T is the critical value, from the t-distribution, with a two-tailed area of \frac{1 - 0.95}{2} = 0.025 and n-1 degrees of freedom.
  • s is the standard deviation for the sample.
  • n is the sample size.

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

Item c:

We have to check if 1411 is between \overline{x} - T\frac{s}{n} and \overline{x} +T\frac{s}{n}.

  • If it is, the interval includes the National Average, otherwise, it does not.

A similar problem is given at brainly.com/question/24232455

7 0
3 years ago
5TH GRADE LEVEL QUESTION: Look at photo and list it step by step GIVING OUT BRAINLIEST.
jasenka [17]

Answer:

(3+4x4)-7

(3+16)-7

19-7

12

4 0
3 years ago
Make t the subject of 5(t − g) = 2t + 7
Alla [95]

Answer:

5(t - g) = 2t + 7 \\ 5t - 5g = 2t + 7 \\ 5t - 2t = 7 + 5g \\ 3t = 7 + 5g \\ t =  \frac{7 + 5g}{3}

5 0
2 years ago
The length of the path of the first swing of the bob of a pendulum is 0.6 in. Each
ycow [4]

Answer:

0.3188646

Step-by-step explanation:

an=a×r^n-1

a6=0.6×0.9^5

=0.354294

1st swing: 0.6

2nd swing: 0.9×0.6=0.54

3rd swing: 0.9×0.54= 0.486

4th 0.9×0.486= 0.4374

5th 0.9×0.4374= 0.39366

6th 0.9×0.39366=0.354294

Brainliest please~

8 0
3 years ago
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