Question

HELP! WILL GIVE A MEDAL!!!

Answer 1

You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. You have gathered several observations of people ordering food of different spice-levels and the number of soft drinks they ordered. You have also plotted the data and found a line of best fit. What would be your next steps to test your hypothesis?

Plot all data together on a dot plot to assess if there is any visible correlation between the data sets.

Offer a conclusion based on the data you observed.

Pick two points on the dot plot and find a line of best fit.

Find the correlation coefficient to see how well the line of best fit actually fits the data.

Answer 2

I think it's A.

Answer 3

Yes it is

Answer 4

Are you sure?

Answer 5

Yes it is A. I have done this question before and I got 100%

Answer 6

Okay, thank! Can you help me with some more?

Answer 7

Thanks*

Answer 8

Yeah sure

Answer 9

A company is paying a local television station to run its commercials. The cost for running commercials is a one-time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500 + 50x, where x is seconds.

What is the y-intercept, and what does it represent?

500; it represents the per-second fee of air time

500; it represents the one-time campaign fee

50; it represents the per-second fee of air time

50; it represents the one-time campaign fee

Answer 10

It is 500 and it represents the one time campaign fee.

Answer 11

Okay, thank you so much.. I have 2 more :)

Answer 12

Okay

Answer 13

The price of a community pool membership has a one-time sign-up fee and a monthly fee. The price can be modeled by the function y = 20x + 50, where x is the number of months.

What is the slope, and what does it represent?

20; it represents the monthly fee

20; it represents the one-time sign-up fee

50; it represents the monthly fee

50; it represents the one-time sign-up fee

Answer 14

now the slope would be the part that changes with time, the other would just be where what the cost would be at time =0 or the y intercept or the sign-up fee, hint hint

Answer 15

When you first get to the pool, your number of months there is 0 (x=0). So y = 20x + 50 = 20(0) + 50 = 50.
So that means 50 must be the sign-up fee.
Also, the first month (x=1) you've payed y = 20(1)+ 50 = 70. That means you've payed 20 more than before. So that 20 must be the monthly fee.

Answer 16

So, B?

Answer 17

Yes good job!

Answer 18

Thanks! :) One more !

Answer 19

Ok

Answer 20

http://gyazo.com/b57fea31229a7e0e68fb4803363b93c7

Answer 21

This one is easy.. it is c

Answer 22

Okay, thanks so much! :)

Answer 23

Ok np

Answer 24

Bye

Answer 25

Bye :)

Answer 26

:)

Answer 27

Hey happyfeet. According to the CoC you should ask one question only.. Not keep replying different question in one. Keep that in mind for next time :)

Answer 28

Okay, thanks.