Ineed with find the mean of the following data: {17, 20, 14, 5, 30, 13, 6, 15} 5. find the median of the following data: {17, 20, 14, 5, 30, 13, 6, 15} 6. what is the mode of the following data: {5, 17, 4, 12, 8, 4, 6}

Mean- Average of numbers

17 + 20 + 14 + 5 + 30 + 13 + 6 + 15 = 120

There are 8 numbers in the data set so 120/8 = 15

So the mean is 15.

Median- The middle number

To find the median you have to place all the numbers in order from least to greatest.

5, 6, 13, 14, 15, 17, 20, 30

The 2 middle numbers are 14 and 15.

Since there are 2 middle numbers you have to add them and then divide them by 2.

14 + 15 = 29/2 = 14.5

So the median is 14.5.

Mode- The number that occurs most often

5, 17 , 4, 12, 8, 4, 6

The number that occurs the most is 4.

So the mode is 4.

Hope this Helps!!

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional