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Semenov [28]
2 years ago
14

What is 5+2? Ive been totally stuck on this for the longest time. I really need help

Mathematics
1 answer:
eduard2 years ago
5 0

that's a tricky one!

but it is 7 i believe

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The t value for a 99% confidence interval estimation based upon a sample of size 10 is
Aliun [14]
Answer:
For a sample size of 10, the t-value is about 3.25 (from tables) at a 99% confidence interval.

Explanation:
When the standard deviation for the population is not known, the confidence interval estimate for the population mean is performed with the Student's t-distribution.
The confidence interval for the mean is calculated as
(\Bar{x}- t\frac{s}{\sqrt{n}} , \, \Bar{x}+ t\frac{s}{\sqrt{n}}
where
 \Bar{x} = sample mean,
s = sample standard deviation,
t = t-value (provided in tables),
n =  sample size.

When reading the t-value, (n-1) is called the df or degrees of freedom.

7 0
3 years ago
Which of the following is equivalent to 0.000001?
Sergio039 [100]
You didn’t post the options but that is also equal to 1.0 x 10^-6
7 0
2 years ago
Martin would like to start training to run a marathon. The first week he runs a total of 15 miles. He would like to run 0.3 more
anygoal [31]

Answer: 15.3 miles

Step-by-step explanation:

From the question, we are informed that Martin would like to start training to run a marathon and that first week he runs a total of 15 miles.

We are further told that he would like to run 0.3 more miles each week than the week before. There, the number of miles that Martin will run the second week will be:

= 15 miles + 0.3 miles

= 15.3 miles

3 0
2 years ago
(9x−5/2) −(3−2x/3) −(8x−2/4 )=2
Ierofanga [76]
The answer for the equation is 21/5 or 4.2.

8 0
3 years ago
Which properties did Marty use?<br><br> Thank you very much!!
nadezda [96]

Answer:123

Step-by-step explanation:

5 0
3 years ago
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