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BARSIC [14]
3 years ago
6

Is the following an example of simple random, cluster, systematic or convenience sampling?

Mathematics
1 answer:
yanalaym [24]3 years ago
7 0
The following is an example of a cluster sampling.

Cluster sampling<span> is a </span>sampling<span> technique used when "natural" but relatively heterogeneous groupings are evident in a statistical population. It is often used in marketing research. In this technique, the total population is divided into these groups (or </span>clusters) and a simple randomsample<span> of the groups is selected.</span>

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X+2y =3 -x+y=6 elimination
Neko [114]
You can try using the formula y=mx+b
8 0
3 years ago
Read 2 more answers
A and b share the cost in a ratio of 3:2. the cost is £85 how much does A pay?
Rufina [12.5K]
A pays 3/5 x 85 = £51,-
b pays 2/5 x 85= £34,-
So the answer is £51,-
8 0
3 years ago
Below are the jersey numbers of 11 players randomly selected from a football team. Find the​ range, variance, and standard devia
jeyben [28]

Answer:

The range is 77.

The variance is 739.8.

The standard deviation is 27.2.

Step-by-step explanation:

The data provided, in ascending order is as follows:

S = {11 , 14 , 23 , 31 , 40 , 60 , 63 , 68 , 75 , 77 , 88}

The range of a data set is the difference between the maximum and minimum values.

From the above data set we know,

Maximum = 88

Minimum = 11

Compute the range as follows:

Range = Maximum - Minimum

           = 88 - 11

           = 77

The range is 77.

Compute the mean of the data as follows:

\bar x=\frac{1}{n}\sum x_{i}=\frac{1}{11}\times [11+14+23+...+88]=50

Compute the variance as follows:

\sigma^{2}=\frac{1}{n-1}\sum (x_{i}-\bar x})^{2}

    =\frac{1}{11-1}\times [(11-50)^{2}+(14-50)^{2}+...+(88-50)^{2}]\\\\=\frac{1}{10}\times 7398\\\\=739.8

The variance is 739.8.

Compute the standard deviation as follows:

\sigma=\sqrt{\frac{1}{n-1}\sum (x_{i}-\bar x})^{2}}=\sqrt{739.8}=27.199265\approx 27.2

The standard deviation is 27.2.

4 0
2 years ago
Which represents the inverse of the function f(x) = 4x?
Viktor [21]

Answer:

last answer:

h(x) = 1/4 x

Step-by-step explanation:

First, change f(x) to y.

f(x) = 4x

y = 4x

Then switch the x and y.

y = 4x

x = 4y

Last, solve for y.

x = 4y

x/4 = 4y/4

x/4 = y

y = x/4

This is the same as:

y = 1/4 x

h(x) = 1/4 x

6 0
1 year ago
Please help ASAP!!!!!!
Valentin [98]
There r <span>Infinitely many solutions. Hope u do good on whatever u doin!!!
</span>
4 0
2 years ago
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