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sergey [27]
3 years ago
13

List all the 3-digit numbers that fit these clues .the hundreds digit is greater than7 .the tens is 1 more than the hundreds dig

it. . The ones digit is less is less than2.
Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0
In this question, there are 3 conditions that need to be met
1. The number is 3-digit
2. Hundreds digit >7 (number that will fulfill it would be 8 or 9)
3. The tens is 1 more than hundred( since the hundred possibilities is 8 or 9, then 9 in hundreds can't be used since no number higher than 9)
4. The one digit <2( that mean 0, 1)

Using the list above, you can make your possible number:
890
891
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Determine whether the results below appear to have statistical​ significance, and also determine whether the results have practi
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Answer:

Step-by-step explanation:

Given that in  a study of a weight loss​ program, 4 subjects lost an average of 48 lbs.

It is found that there is about a 32​% chance of getting such results with a diet that has no effect.

The results do not appear to have statistical significance.  The reasons are

1) Sample size of 4 is very small not even meeting the bare minimum

2) Sample of 4 cannot be taken to represent the population

3) Whether bias was there in the selection of sample is not known.

4) Std deviation is not considered which is very important while concluding results.

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3 years ago
You have four cards, labeled 2-5. What is the probability of drawing a number less than 3, putting the card back, then drawing a
Usimov [2.4K]

|\Omega|=4^2=16\\ |A|=1\cdot 3=3\\\\ P(A)=\dfrac{3}{16}\approx19\%

3 0
3 years ago
Helppp need to find x and r TRIG!​
jolli1 [7]

Answer:

x = 18

18√2

Step-by-step explanation:

This is a special right triangle with angle measures 45° 45° 90°

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So x = a and x = 18

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7 0
3 years ago
A company that makes shampoo wants to test whether the average amount of shampoo per bottle is 16 ounces. The standard deviation
S_A_V [24]

Answer:

The correct option is 16.041 ounces.

Step-by-step explanation:

A single mean test can be used to determine whether the average amount of shampoo per bottle is 16 ounces.

The hypothesis can be defined as:

<em>H₀</em>: The average amount of shampoo per bottle is 16 ounces, i.e. <em>μ</em> = 16.

<em>Hₐ</em>: The average amount of shampoo per bottle is different from 16 ounces, i.e. <em>μ</em> ≠ 16.

The information provided is:

n=64\\\sigma=0.20\\\alpha =0.10

We can compute a 90% confidence interval to determine whether the population mean is 16 ounces or not.

Since the population standard deviation is known we will compute the <em>z-</em>interval.

The critical value of <em>z</em> for 90% confidence interval is:

z_{0.05}=1.645

*Use a <em>z-</em>table.

Compute the 90% confidence interval for population mean as follows:

CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\

Since the sample size is quite large, according to the law of large numbers the on increasing the sample size, the mean of the sample approaches the whole population mean.

So, the 90% confidence interval estimate for sample mean is:

CI=\mu\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\=16\pm 1.645\times \frac{0.20}{\sqrt{64}}\\=16\pm0.041125\\=(15.958875, 16.041125)\\\approx (15.959, 16.041)

Thus, the correct option is 16.041 ounces.

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Answer:

Step-by-step explanation:

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