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monitta
3 years ago
14

What does it mean when they say what is the mean of a data set?

Mathematics
2 answers:
Bess [88]3 years ago
6 0

Answer:

Below.

Step-by-step explanation:

The mean is the average of a set of numbers:

Mean = sum of the values / number of values.

For example the mean of 2 6 8 12 is

(2 + 6 + 8 + 12) / 4

= 28/4

= 7.

astra-53 [7]3 years ago
3 0

Answer:

the mean of a set is the average of the numbers in that set. How you get the mean is you add up all the numbers then you divide by how many numbers are in the set.

Step-by-step explanation:

example is 1,2,3,4,5,6,7

the mean of this set is 4

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Ted has a shelf that is 75/4 inches wide. How many books can Ted arrange on the shelf if each book is 5/4 inches thick?
Paladinen [302]
(75/4) / (5/4) = 
75/4 * 4/5 = 
300/20 =
15 books

6 0
3 years ago
Old McDonald had a farm. In one pen the old farmer had chickens and bulls together. In that pen there were 40 animals in total,
SVETLANKA909090 [29]

Answer:

There are 15 numbers of chicken and 25 numbers of bulls.

Step-by-step explanation:

The pen had chickens and bulls.  The pen contains 40 animals in total. The number of legs in the pen is 130 .

Let

a = number of chicken

b = number of bull

a + b = 40................(i)

A chicken has 2 legs and a bull has 4 legs.

The total legs can be represented as

2a + 4b = 130...........(ii)

combine the equation

a + b = 40................(i)

2a + 4b = 130...........(ii)

a = 40 - b

insert the value of a in equation(ii)

2(40 - b) + 4b = 130

80 - 2b + 4b = 130

80 + 2b = 130

2b = 130 - 80

2b = 50

divide both sides by 2

b = 50/2

b = 25

Insert the value of b in equation (i)

a + b = 40

a + 25 = 40

a = 40 - 25

a = 15

There are 15 numbers of chicken and 25 numbers of bulls.

8 0
3 years ago
Bre makes $5 per week. Bre is saving up for $100. How many weeks would it take for Bre to make the $100?
LekaFEV [45]

Answer:

The answer would be 20 weeks

Step-by-step explanation:

Because, if she makes $5 per week you would just divide 100 by 5 and get 20 and to check you would multiply your answer to see if it equals the amount he/she would want to amount to. Hope this helps! Happy learning!

5 0
3 years ago
Need help so much on Circle<br><br> Please help me for my geometry honors work please! Thank you
vichka [17]

Answer:

x = 95

Step-by-step explanation:

The total degree of a circle is 360. The twp arcs on each side of the parallel lines are equal.

Subtract 135 and 35 from your total

<em>360 - 135 - 35 = 190</em>

Divide your answer by 2

<em>190 ÷ 2 = 95</em>

6 0
2 years ago
Read 2 more answers
Dexter has worked out 3/5 x 8 here is his working. explain the mistake he has made.
Tcecarenko [31]

Answer:

He multiplyed 3x8 and 5x8 when it should be 3x8 and 5x1 because you but 1 under the 8 to make it into a  fraction.

Step-by-step explanation:

8 0
2 years ago
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