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Andrei [34K]
3 years ago
12

If you are eligible to help can you help me please.!

Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0

Answer:

The difference in the medians of both weeks is 5 minutes.

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Mario start collecting stamps in January and buys 12 stamps each month.Karen starts collecting stamps in July and buys 18 starts
Goryan [66]

Answer:

12 months

Step-by-step explanation:

Given that:

Mario:

12 stamps per month

Since January

Karen :

18 stamps per month

Starts on july

Number of stamps collected by Mario till the end of June :

12 * 6 = 72 stamps

For Mario :

72 + 12x

For karen:

18x

Where x is the number of months after karen starts :

Equate both equations

72 + 12x = 18x

72 = 18x - 12x

72 = 6x

x = 72/6

x = 12

After 12 months

Number of months after karen starts, will they have same amount of stamp

7 0
3 years ago
Veterinary researchers at a major university veterinary hospital calculated a 99% confidence interval for the average age of hor
mestny [16]

Answer:

c. we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.

Step-by-step explanation:

Given that veterinary researchers at a major university veterinary hospital calculated a 99% confidence interval for the average age of horses admitted for laminitis, a foot disease that leaves the horse severely lame, as 6.3 to 7.4 years.

i.e. if X is the age of horses admitted for laminitis then the sample mean i.e. x bar follows a distribution with 99% confidence interval as

(6.3,7.4)

The interpretation of 99% confidence interval is the for sample of large size drawn at random from population we can be 99% confident that the sample mean will fall within this interval.

So the correct option is

c. we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.

8 0
3 years ago
There are some books on a shelf and 12 are cookbooks. If 20% are cookbooks, how many books are on the shelf
GuDViN [60]
If u take 12 divided by .20 you would get 60 because if u think of it as a dinner bill say it is $60.00 and I want to give a 10% tip it would be $6 but if u give a 20% tip u would give $12
5 0
3 years ago
Four of a sample of 150 computers will be selected and tested. How many ways are there to make this selection? Type a
OleMash [197]

Answer:

20260275

Step-by-step explanation:

the question is same as selecting 4 things from 150 things

= C(150,4). (nCr formula)

=[150×149×148×147]÷[4×3×2×1]

= 49×75×149×37

= 20260275

6 0
3 years ago
I NEED HELP ASAP PICK ALL
igor_vitrenko [27]

Answer: I'm serious, where is your question? no question posted here sir.

5 0
3 years ago
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