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MrRissso [65]
3 years ago
8

Based on the following set of data, which of the statements shown is true?

Mathematics
2 answers:
Stolb23 [73]3 years ago
8 0
The mean is greater than the median
enyata [817]3 years ago
6 0

Answer: mean > median

Step-by-step explanation:

The given data : 11, 11, 12, 13

The mean of the given data set is given by :-

\text{Mean}=\frac{\text{Sum of all elements}}{\text{number of all elements}}\\\\\Rightarrow\ \text{Mean}=\frac{11+11+12+13}{4}\\\\\Rightarrow\ \text{Mean}=\frac{47}{4}\\\\\Rightarrow\ \text{Mean}=11.75

To find median, first arrange them in ascending order  and since the number of elements is a even number(n=4), therefore,

Median=\frac{\frac{n}{2}\ term+(\frac{n}{2}+1)\ term}{2}

\frac{n}{2}\ term=\frac{4}{2}\ term=2nd\ term=11

\frac{n}{2}+1\ term=\frac{4}{2}+1\ term=3rd\ term=12

Median=\frac{11+12}{2}=\frac{23}{2}=11.5

Since, 11.75>11.5

Therefore, mean > median

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A hair salon completed a survey of 367 customers about satisfaction with service(Dissatisfied, Neutral, Satisfied, or Very Satis
mamaluj [8]

The results of the survey are shown in the table.

It's required to calculate the following probabilities:

a) A customer is neutral

The row labeled as 'Neutral' has a total of 79 customers out of 367 in total.

The required probability is:

p=\frac{79}{367}

b) A customer is a walk-in

The first column labeled as 'Walk-in' has a total of 106 customers out of 367. The required probability is

p=\frac{106}{367}

c) A customer is dissatisfied and a walk-in.

We have to cross the row Dissatisfied with the column Walk-in. The number of customers that have both categories is 22 out of 367.

The required probability is:

p=\frac{22}{367}

d) A customer is very satisfied given he saw a TV ad.

This is a conditional probability, where the total is 111 because is the given condition. The customers that have both characteristics are 33, thus the required probability is:

p=\frac{33}{111}=\frac{11}{37}

e) A customer is satisfied or referred.

Total satisfied = 139

Total referred = 150

With both features = 62

Total customers with one or both features: 139 + 150 - 62 = 227

We have to subtract the common feature because it was counted twice.

The required probability is:

p=\frac{227}{367}

6 0
1 year ago
Giving brainliestttyttttt
-Dominant- [34]

Answer:

C

Step-by-step explanation:

Because its right

4 0
2 years ago
Last question...! And then I’m totally done with asking questions for a while. -v-;; Any answers or advice on how to solve?
Veseljchak [2.6K]
Multiply both sides by "x"

1 -x + 2x = 7

x = 6
6 0
3 years ago
How many 1-inch cubes will fit into a 3 and 1/2 in rectangular prism?
alexandr402 [8]
Suppose the height of the prism is 1 in, then the volume will be:
volume=length×width×height
thus
volume of the prism will be:
V=3×1/2×1
V=1.5 in³

Volume of the cube will be:
v=1×1×1=1 in³
Thus the number of cubes that will be in the prism will be:
(1.5 in³)/(1 in³)
=1.5 cubes~2 cubes
7 0
3 years ago
Which is greater 8/10 or 80/100
balandron [24]
They are equal because of you simplify 80/100 by dividing by 10 u get 8/10
6 0
3 years ago
Read 2 more answers
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