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Troyanec [42]
2 years ago
6

Can someone pleas Help me with this I don't get it. And Thank you o much if you helped me.

Mathematics
2 answers:
agasfer [191]2 years ago
8 0

Answer: 20=96    40=192   60=288

Step-by-step explanation:

satela [25.4K]2 years ago
8 0

Answer:

20 shirts cost 96.00

40 shirts cost 192.00

60 shirts cost 288.00

Step-by-step explanation:

Multiply 4.80( per shirt) with the amount of shirts you have

Plz brainly

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50 people are selected randomly from a certain population and it is found that 12 people in the sample are over 6 feet tall. wha
Taya2010 [7]

Answer:

The point estimate of the proportion of people over 6ft to total people is 6:25

Step-by-step explanation:

To find this, simply start with the number of people over 6 ft and total people as a proportion.

12:50

Then simplify by dividing by 2

6:25

8 0
3 years ago
I dont get this at all
Neko [114]
Use the internet that is what i would sorry i am in the 10th grade

3 0
3 years ago
Rafael counted a total of 40 white cars and yellow cars. There were nine times as many white cars as yellow cars.How many white
Alex777 [14]
You said there were 40 yellow carsso 40×9 is 360
4 0
3 years ago
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of pain relief drug is norm
FrozenT [24]

Answer:

a) P(1

b) P(X

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Part a

Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:

X \sim N(1.5,0.8)  

Where \mu=1.5 and \sigma=0.8

We are interested on this probability

P(1

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(1

And we can find this probability on this way:

P(-0.625

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.625

3) Part b

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(z

6 0
3 years ago
How can you divide 133 nickels into 8 bags so that there are the same number of nickels in each bag and the number in each bag i
MaRussiya [10]
There is no way to divide them because 133 is odd, so 133 divided by 8 would be 16.625.
3 0
3 years ago
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