Attendance Assignment
12:00
11:00
100
10.00
As the Ferris Wheel Turns
4. NEW Ferris Wheel:
The radius of the Ferris wheel is 65 feet.
The speed of the wheel, makes a
complete turn every 45 seconds, and moves
counterclockvise.
• The height of the center of the wheel
is 80 feet off the ground.
a) What is the angular speed for this Ferris Wheel?
900
b) How many seconds does it take for Mrs Fogiel and
Mrs Koch's cart to go each of the following distances?
i. From the 3 o'clock to the l o'clock position?
ii. From the 3 o'clock to the 8 o'clock position?
ii. From the 3 o'clock to the 6 o'clock position?

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

-2/

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,