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nevsk [136]
3 years ago
6

Help please its due tomorrow

Mathematics
1 answer:
boyakko [2]3 years ago
5 0

Answer:

20 is the answer

Step-by-step explanation:

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Suppose a marketing company computed a 94% confidence interval for the true proportion of customers who click on ads on their sm
Ksivusya [100]

Answer:

d. There is a 98% chance that the true proportion of customers who click on ads on their smartphones is between 0.56 and 0.62.

Step-by-step explanation:

Confidence interval:

x% confidence

Of a sample

Between a and b.

Interpretation: We are x% sure(or there is a x% probability/chance) that the population mean is between a and b.

In this question:

I suppose(due to the options) there was a small typing mistake, and we have a 98% confidence interval between 0.56 and 0.62.

Interpreation: We are 98% sure, or there is a 98% chance, that the true population proportion of customers who click on ads on their smartphones is between 0.56 and 0.62. Option d.

3 0
3 years ago
Mr.gilliam is 3 years younger than his wife.the sum of their ages is 95.how old is mr.gilliam
Usimov [2.4K]
X = the age of Mr. Gilliam
His wife is 3 years older, so the age of Mr. Gilliam's wife = x+3
The sum of their ages is 95.

x+x+3=95 \\
2x+3=95 \\
2x=95-3 \\
2x=92 \\
x=46

Mr. Gilliam is 46 years old.
3 0
3 years ago
Read 2 more answers
HELP ME (How many cubes with side length 1/2 cm does it take to fill the prism
Natalija [7]

answer:

6

step-by-step explanation:

  • for this you would find the volume and then divide by 1/2

v = l x w x h

v = (1)(2)(3/2)

v = 3

  • now, divide

3 ÷ 1/2 = 6

  • therefore, it will take 6 half cubes to fill up the container
8 0
3 years ago
Express £5 as a fraction of £4.
viktelen [127]

Answer:

£5/£4

Step-by-step explanation:

£5 over £4 can be expressed as a fraction.

⇒ £5/£4

7 0
2 years ago
Read 2 more answers
You are standing above the point (5,5)(5,5) on the surface z=15−(2x2+2y2)z=15−(2x2+2y2). (a) in which direction should you walk
Marianna [84]
Since the surface is the top part of a sphere centred on the origin, the directions of steepest descent are any vector originating from the origin (0,0).

At (5,5), the direction would be dictated by the line joining (5,5) and the origin (0,0), i.e. along <5,5> or equivalently along <1,1>.

You can also go through vector calculus to arrive at the same result.

6 0
3 years ago
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