Need on 8 and 9 ! i start school tomorrow and i don’t get this

Step-by-step explanation:

Gonna go ahead and just type out the numbers in ascending order so I can easily copy and paste.

15.2

16.9

18

18

18

19.6

21.1

21.5

22

24

27.2

28

28.5

29

Now then, a frequency table is there to tell how often a number or set of numbers occurs among  a list..  For instance, in this list there are 14 numbers total and 18 occurs 3 times so the frequency of 18 is 3/14 or .21

So lets go through the requested entries in this frequency table.

15-17.9: There are two numbers between 15 and 19.9 so that's 2/14 or .14

18-20.9: There are four between 18 and 20.9 so it's 4/14 = .29

21-23.9: 3/14 = .21

24 - 26.9: 1/14 = .07

27 - 29.9: 4/14 = .29

Worth noting that if you add all the results in a frequency table they should equal 1 or be very very close.

Do you need help with a histogram?  If so I can try and work it out rhough here.

For mean, median and mode you need the numbers listed in number order, which I already did.

Mean is the average, so sum all results and divide by how many there are.  So that's (15.2 + 16.9+ 18+ 18+ 18+ 19.6+ 21.1+ 21.5+ 22+ 24+ 27.2+ 28+ 28.5+ 29)/14

Median the middle number or, if there are two middle numbers then it's the two middle numbers added together then divided by two.  Since there are 14 numbers there are two middle numbers, basically if the number of numbers is even,  so that's (21.1 + 21.5)/2

Mode  is the number that occurs most often.  Only one number occurs more than once, so it's 18

step-by-step explanation:

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200