Question

help me please :/ TABLES RELATED

Answer 1

A company did a survey among 100 customers to find their car preferences. The customers were asked about their preferences for sedans or hatchbacks. Out of the total 25 people who liked sedans, 15 liked hatchbacks also. There were 40 people who liked hatchbacks.

Part A: Summarize the data by writing the values which the alphabets A to I in the table below represent. (5 points)

Answer 2

@agent0smith @Hero @Martymar @mjoxprm360

Answer 3

@ganeshie8

Answer 4

sure the question were right?

Answer 5

the question would be legit if it was 50 customers

Answer 6

huh? i think a is 25

Answer 7

a=15

Answer 8

b=25
d=10
e=50

Answer 9

so f 60?

Answer 10

a=25 b=25 c 50
d=10 e=50 f 40
g 35 h 75 i 110

Answer 11

A = 15

Answer 12

i must = 100 since you survey on 100 ppl

Answer 13

a=15 b=25 c=60
d=10 e=50 f= 40
g=35 h=75 i=100

Answer 14

that :O

Answer 15

yes

Answer 16

What percentage of the total people did not like either sedans or hatchbacks? soo this is 60%?

Answer 17

d=10 e=50 = 60 so 60% ?

Answer 18

50

Answer 19

E is ppl who did not like either sedans or hatchbacks

Answer 20

ahh ok sweet, will u help me with 1 more question please

Answer 21

sure

Answer 22

Write a function which best fits the data. (3 points)

Part C: What does the slope and y-intercept of the plot indicate? (

Answer 23

im clueless

Answer 24

f(x) = 90-4x

Answer 25

y the 4 x?

Answer 26

slope = -4

Answer 27

how do we find tht out :O

Answer 28

well y keep decrasing when x is increasing right?

Answer 29

yes

Answer 30

and @x=0 y=90

Answer 31

so you set 90-(something)

Answer 32

how to we find the soething

Answer 33

f(0) =90
f(1) = 86 ---> 90-4
f(2) = 82 ---> 90-8
f(3) = 78 ---> 90-12

Answer 34

ahhh i get it now ;)

Answer 35

but What does the slope and y-intercept of the plot indicate?

Answer 36

slope is delta y/ deta x

Answer 37

(y2-y1)/(x2-x1)

Answer 38

pick any point on the graph from left to right as ((x1,y1),(x2,y2))

Answer 39

1 86 , 4,74?

Answer 40

ok

Answer 41

so (74-86)/(4-1)

Answer 42

-4

Answer 43

yes so this indicates going down at a -4 slope?

Answer 44

yes

Answer 45

ok , can i ask u 1 more question, i promise no more

Answer 46

:)

Answer 47

y-intercept
f(x)=90-4x
0=90-4x
x=90/4

Answer 48

sure keep asking. I'm here to help

Answer 49

George has found a relationship between the number of people at an amusement park in the afternoon and the air temperature, in degrees Celsius. The table below shows the data collected by George.


Temperature (in degrees Celsius)
(x) 20 21 22 23 24 25 26 27 28
Number of people at the amusement park in the afternoon
(y) 200 190 181 172 160 150 140 130 120


Part A: What would most likely be the number of people at the amusement park in the afternoon if the temperature is 35 degrees Celsius? (3 points)

Part B: Predict a possible correlation coefficient for the data in the table and explain why you think your prediction is a good value for the data. (4 points)

Part C: George says that if a discount is given on the price of tickets at the amusement park, the number of people at the park would increase. Is this an example of correlation or causation? Justify your answer. (3 points)

Answer 50

a im confised its going down 10 sometimes, but sometimes it dosnt

Answer 51

hey u here?

Answer 52

eq

Answer 53

is f(x)=-10x +400

Answer 54

waa

Answer 55

so if x=35
number of ppl would be 50

Answer 56

ok wats do u think for part b?

Answer 57

hang on

Answer 58

which grade are you in?
u use formula to find correlation coefficient ?

Answer 59

9

Answer 60

u use formula?

Answer 61

this the x2 y2 1 again?

Answer 62

i got -10

Answer 63

that's the slope

Answer 64

ok

Answer 65

is part c causesion because it is directly effecting the number of people

Answer 66

in part be the correct answer with the formula would be -0.9997

Answer 67

ok

Answer 68

i have to go now but thank you so much for all your help

Answer 69

sure