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2 years ago

What kind of variable is this: Rural, Semi-rural, Urban.

Mathematics

1 answer:

kvasek [131]2 years ago

4 0

Answer: Qualititative, Nominal and Categorical

Explanation:

The variable is qualitative since it does not involve numerical data (i.e. numbers). Rather we're dealing with names or labels.

Since names or labels are involved, and there isn't really inherent order to them, we consider this qualitative data to be nominal.

We can also consider it categorical since each label is a category.

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Consider two boxes, one containing one black and one white marble, the other, two black and one white marble. A box is selected

valina [46]

Answer:

$\frac{7}{12}$

Step-by-step explanation:

Probability refers to chance of happening of some event.

Conditional probability is the probability of an event A, given that another event B has already occurred.

$B_1,B_2$ denote the two boxes.

In box $B_1$ :

No. of black balls = 1

No. of white balls = 1

In box $B_2$ :

No. of black balls = 2

No. of white balls = 1

Let B, W denote black and white marble.

So, probability that either of the boxes $B_1,B_2$ is chosen is $\frac{1}{2}$

Probability that a black ball is chosen from box $B_1$ = $\frac{1}{2}$

Probability that a black ball is chosen from box $B_2=\frac{2}{3}$

To find:probability that the marble is black

Solution:

Probability that the marble is black = $\frac{1}{2}(\frac{1}{2} )+\frac{1}{2}(\frac{2}{3})=\frac{1}{4}+\frac{1}{3}=\frac{7}{12}$

6 0

3 years ago

Fletcher got 92 votes in the class election. 115 people voted. what percent of all the votes did he get?

lisabon 2012 [21]

92 divided by 115 equals 80 percent

3 0

3 years ago

You move up 7 units and left 6 units. you end at (-1,5). where did you start?

Olenka [21]

Answer:I beleive it is (5,-2)

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

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frez [133]

I'm pretty sure just 1, i don't really know what the question is asking

3 0

3 years ago

Read 2 more answers

I have a circular piece of fabric I am going to make a tablecloth. The radius of the fabric is 2 meters. What is the area of the

Bond [772]

Answer:

$4\pi$

12.57

Step-by-step explanation:

I have a circular piece of fabric I am going to make a tablecloth. The radius of the fabric is 2 meters. What is the area of the tablecloth I can make

Essentially, you are attempting to find the area of a circle with a radius of 2 meters.

The formula for an area of a circle is $\pi r^2$ , or pi times radius squared.

Plugging in 2 meters as your radius, that gets your answer to be $4\pi$ , or 12.57 in decimal.

4 0

3 years ago