Calculate the mean. 4, 5, 7, 7, 9, 12, 15, 20

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Answer:

Mean: 9.875

Median: 8

Mode: 7

Minimum: 4

Maximum: 20

Range: 16

Size: 8

Sum: 79

Step-by-step explanation:

How to find the mean?

1. Count the number N of data points in your data set.

2. Sum up all of the data points in your data set (add them all together).

3. Average = Mean = Sum/N.

How to find the median ?

The median is the numeric value separating the upper half of a sample data set from the lower half. The median of a data set can be found by arranging all the values from lowest to highest value and picking the one in the middle. If there is an odd number of data values then the median will be the value in the middle. If there is an even number of data values the median is the mean of the two data values in the middle.

For the data set 1, 1, 2, 5, 6, 6, 9 the median is 5.

For the data set 1, 1, 2, 6, 6, 9 the median is 4. It is the mean of 2 and 6 or, (2+6)/2 = 4.

How to find the mode

Mode is the value or values in the data set that occur most frequently.

For the data set 1, 1, 2, 5, 6, 6, 9 the mode is 1 and also 6.

Hope this helps you! :D

You might be interested in

Answers for questions 11. And 12.

Sloan [31]

Answer:

11. odd, 12. slope = 2 and the line rises.

Step-by-step explanation:

11. To determine if the function is odd, even, neither, you have to plug in -x in the function and simplify.If you end up with the exact same function that you started with (that is, if f (–x) = f (x), so all of the signs are the same), then the function is even. If you end up with the exact opposite of what you started with (that is, if f (–x) = –f (x), so all of the signs are switched), then the function is odd. In all other cases, the function is "neither even nor odd".

12. y2 - y1 / x2 - x1

1-9/-2-2 = 2

5 0

3 years ago

16x25 rewritten correctly using commutative property and then simplified correctly

marysya [2.9K]

Answer:

rewritten in commutative property: 25 x 16

simplified: 400

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Graph these 2 equations for me?? y=5(1/2)^x +4 y=4(1/6)^(x+2)

olchik [2.2K]

The graphs of the two equation are attache. The red curve represents the graph of the equation $y=5(1/2)^x +4$ while the blue curve represents the graph of the equation $y=4(1/6)^{(x+2)}$ .