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melomori [17]
3 years ago
9

50 POINTS !! PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Mathematics
2 answers:
Alisiya [41]3 years ago
4 0
You mean 5 points


the answer is 6.
sweet-ann [11.9K]3 years ago
4 0

Answer:

I think its 7 or 6

Step-by-step explanation:

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A major television manufacturer has determined that its 44 inch screens have a mean service life that can be modeled by a normal
Neko [114]

Answer:

P(5

And we can find this probability with thie difference:

P(-2

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

P(-2

Step-by-step explanation:

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".  

Solution to the problem

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(6,0.5)  

Where \mu=6 and \sigma=0.5

We are interested on this probability

P(5

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(5

And we can find this probability with thie difference:

P(-2

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

P(-2

5 0
3 years ago
Titus works at a hotel. Part of his job is to keep the complimentary pitcher of water at least half full and always with ice. Wh
stira [4]

Answer:

according to the equation it is 158.330917...

Step-by-step explanation:

put w as 64 and solve for t

6 0
3 years ago
Read 2 more answers
3.14 and
stepladder [879]

Answer:

471ft^3

Step-by-step explanation:

5^2 x 6 x 3.14

25 x 6 = 150

150 x 3.14 = 471

5 0
3 years ago
Find the area using the given image.
8_murik_8 [283]
Answer:
54

Explanation:
Area of a triangle: 1/2 * base * height
1/2 * 18 * 6 = 54

Hope this helped you! :)
6 0
1 year ago
HELP ASAP PLZZ
Nonamiya [84]

Answer:

The Answer is A. 2/5

Step-by-step explanation:

The way i Divide fractions is by if you take the second fraction and swap the numbers around, you can do 7/24 TIMES 48/35. then you multiply the numbers NOT in a crossway like 7 times 35 butin a straight way so its 7 times 48. Doing so will get you 336/840. I simplified this answer by 6 and got 56/140 then i simplified it again by 4 to get 14/35 and once more i simplified it by 7 to get 2/5.

4 0
3 years ago
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