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Brrunno [24]
2 years ago
10

Find the mean of the following set of data: 12, 8, 7, 12, 6

Mathematics
2 answers:
maks197457 [2]2 years ago
7 0

Answer:

mean = 9

Step-by-step explanation:

The mean is calculated as

mean = \frac{sum}{count} , then

mean = \frac{12+8+7+12+6}{5} = \frac{45}{5} = 9

tigry1 [53]2 years ago
6 0

Answer: 9

Step-by-step explanation:

12 + 8 + 7 + 12 + 6 = <u>45</u>

There are <u>5</u> numbers

45 / 5 = 9

You might be interested in
If the temperature in degrees Celsius , of a particular place from January to December was given as 9,11,12,12,13,14,14,14,16,15
Ira Lisetskai [31]

Answer:

use a calculator

Step-by-step explanation:

Add all of the numbers and divide by 12

5 0
2 years ago
Michael can buy 4 sandwiches and 3 cups of coffee for $23.75. Amy can buy 2 sandwhiches and 5 cups of coffee for $19.75 how much
Kobotan [32]

Answer: The cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

Step-by-step explanation:

Let x be the cost of one sandwich and y be the cost of one cup of coffee.

By considering the given situation, we have the following equations :-

4x+3y=23.75.................(1)\\\\2x+5y=19.75................(2)

Multiply 2 on both sides of equation (2) , we get

4x+10y=39.5................(3)

Subtract equation (1) from equation (3), we get

7y=15.75\\\\\Rightarrow\ y=\dfrac{15.75}{7}=2.25

Put value of y in (1), we get

4x+3(2.25)=23.75\\\\\Rightarrow\ 4x+6.75=23.75\\\\\Rightarrow\ 4x =17\\\\\Rightarrow\ x=4.25

Hence, the cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

8 0
2 years ago
HELP
vaieri [72.5K]
4/8 simplified is 2/4 i think
3 0
3 years ago
*will give brainliest*
andriy [413]
I think the answer is one solution
3 0
2 years ago
The table below shows the surface area y, in square feet, of a shrinking lake in x days:
andreyandreev [35.5K]
Based on the data, the most likely correlation coefficient would be -1.
The slope between 20 and 30 days is -1, and it represents the change in the surface area of the lake per day.
The data represents correlation, not causation.

Since the data would form a perfectly straight line through the points, the correlation coefficient would be -1 for a perfect decreasing fit.
To find the slope, find the change in the surface area between those days, the change in the days, and write it as surface area/days:  80-90=-10; 30-20=10; -10/10=-1
This is not causation because there could be lurking variables we cannot see.
6 0
3 years ago
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