8th Grade Pre-Test

8

  g rade   S tatistics   U nit   P re-­‐Test  

th

 

Name:   _ _________________________________________________  

Date:__________________________  

Class:   _ _________________  

 

1.   T he   f ollowing   t able   s hows   t he   g rams   o f   f at   a nd   n umber   o f   c alories   f or   s elect   i tems   a t   a   f ew   f ast   f ood   r estaurants.      

 

Fast Food

Food

Fat

Calories

Part   A    

Restaurant

On   t he   g rid   b elow,   c reate   a   s catter   p lot   o f   t he  

McDonald’s

English Muffin

5

170

data.   P lot   t he   g rams   o f   f at   v ersus   t he   n umber   o f  

calories   f or   e ach   i tem.   T hen   d raw   a   l ine   o f   b est   f it  

Chunky Chicken Salad

4

150

for   t he   d ata.  

Hardee’s

Chicken Fillet

13

370

Be   s ure   t o  

Grilled Chicken Sandwich

9

310

Title   t he   s catterplot  

•

Label   e ach   a xis  

Arby’s

Grilled Chicken Barbeque

14

378

•

Use   a ppropriate   s cales  

•

Light Roast Beef Deluxe

10

296

 

Chicken Noodle Soup

2

99

 

 

Taco Bell

Bean Burrito

12

380

 

Grilled Chicken Burrito

15

410

 

 

Title:   _ _________________________________________  

Part   B  

Write   t he   e quation   f or   y our   l ine   o f   b est   f it:  

 

_______________________________________________  

 

Part   C   U se   y our   l ine   o f   b est   f it   t o  

answer   t he   f ollowing:  

a. Taco   b ell   h as   a n   i tem   o n   t he   m enu  

with   5 50   c alories.     H ow   m any  

grams   o f   f at   w ould   y ou   p redict  

this   i tem   w ould   h ave?  

 

______________   g rams   o f   f at  

b. McDonald’s   a lso   h as   a n   i tem   o n  

the   m enu   w ith   8   g rams   o f   f at.    

How   m any   c alories   w ould   y ou  

predict   t his   i tem   h as?  

 

______________   c alories  

 

Part   D  

Explain   w hat   t he   s lope   r epresents    

Axis   n ame:_____________________________________  

within   t he   c ontext   o f   t his   p roblem.  

__________________________________________________________________  

__________________________________________________________________  

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