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3 years ago

What are two prime numbers that are greater than 25 and less than 35

2 answers:

6 0

The answer is 29 and 31 because by the definition of a prime number it is a natural number that is greater than 1 and has no positive divisors other than 1 and itself.

Feliz [49]3 years ago

4 0

There are only 2 prime numbers between 25 and 35. They are 29 and 31

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A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups

HACTEHA [7]

Answer: b. 8.56 to 21.44

Step-by-step explanation:

Let $\mu$ be the mean number of pushups that can be done.

As per given , we have

Sample size : n= 10

Degree of freedom = n-1=9

Sample mean : $\overline{x}=15$

Sample standard deviation : $s=9$

Significance level : α=1-0.95=0.05

From t- distribution table ,

Critical two -tailed t-value for α=0.05 and df = 9 is

$t_{\alpha/2, 9}=t_{0.025,9}=2.2622$

Confidence interval for $\mu$ is given by :-

$\overline{x}\pm t*\dfrac{s}{\sqrt{n}}$

$=15\pm (2.2622)\dfrac{9}{\sqrt{10}}\\\\\approx 15\pm 6.44=(15-6.44,\ 15+6.44)\\\\=(8.56,\ 21.44)$

Hence, the 95% confidence interval for the true mean number of pushups that can be done is 8.56 to 21.44.

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2 years ago

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Artemon [7]

Answer:

30.7

Step-by-step explanation:

It's 30.7 because 707/23

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2 years ago

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3 years ago

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