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2 years ago

What is the parameter of interest to compare the proportions from two populations?

1 answer:

7 0

As with comparing two population proportions, when we compare two population means from independent populations, the interest is in the difference of the two means. In other words, if is the population mean from population 1 and is the population mean from population 2, then the difference is μ 1 − μ 2 .

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Cardinal number of set A=1,2,3,4,0,7 is 6

lara [203]

Answer:

n(A) = 6

Step-by-step explanation:

Let consider a set A = {a, m, b, d, h}. There are five elements in the set. The no of elements in a set is known its cardinality. Since set A has five elements, its cardinality number is 5. The cardinality of the set A is denoted by n(A).

Hence, from the given information:

The set A = {1, 2, 3, 4, 0, 7} have a cardinality number of 6

n(A) = 6

3 0

2 years ago

There are 2 cats on each house roof, and there are 15 cats on the ground. The table shows how the number of cats, c, depends on

Nuetrik [128]

Answer: c = 2h + 15

Step-by-step explanation: Each house (h) adds 2 cats. We represent that with 2h. Then we add the constant 15 on the ground as +15.

4 0

3 years ago

X^2-21.75x=-15.75 what is one solution

Jlenok [28]

Well, there are two solutions.

Add both sides by 15.75 then from here, you can use quadratic formula.

So your answer should be x = -2.44949 or 2.44949.

5 0

3 years ago

Help me pleae HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

max2010maxim [7]

Answer:

Step-by-step explanation:

d = c/pi

so d = 62.8/pi

d = 62.8/pi or appr 19.99in

r = d/2

so r = 62.8/2pi or 31.4/pi appr 19.99/2

$a = \pi r^{2}$

$a = \pi *(31.4/\pi)^2$

then

$a = 985.96/pi$

a = approximately 313.84

answer is rowan

3 0

3 years ago

A group of students is arranging squares into layers to create a project. The first layer has 5 squares. The second layer has 10

True [87]

Answer:

Recursive formula:

$a_1=5;a_n=5+a_{n-1},n>0$

Explanation:

All the shown formulae in the choice list are recursive formulae instead of explicit formulae.

Explicit formulae that represent arithmetic sequences are of the form:

$a_n=a_1+(d-1)n$

That kind of formula permits to determine any term knowing the first term, the number of the term searched, and the common difference (d).

On the other hand, the recursive formulae let you to calculate one term knowing the previous term and the difference.

In this case, the difference in the number of squares of two consecutive terms is:

differece = number of squares in the second layer - number of squares in the first layer.

d = 10 - 5 = 5

Then, the recursive formula is:

$a_1=5;a_n=5+a_{n-1},n>0$

8 0

3 years ago