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MArishka [77]
2 years ago
14

According to a Pew Research Center report from 2012, the average commute time to work in California is 27.5 minutes. To investig

ate whether a different average is true for the small city that she lives in, a California high school student surveys 45 people she knows-her teachers, her parents and their friends and co-workers - and finds the average commute time for this sample to be 24.33 minutes, with a standard deviation of 9.53 minutes The data were not strongly skewed
a. Identify the observational units for this study.

b. Identify the variable of interest and state whether it is categorical or quantitative.

c. Identify (in words and using an appropriate symbol) the parameter of interest
Mathematics
1 answer:
FinnZ [79.3K]2 years ago
7 0

Answer:

b. Identify the variable of interest and state whether it is categorical or quantitative.

Step-by-step explanation:

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Bonita is testing prototype model rocket engines. To be considered a successful launch, the rocket must reach a height of at lea
lbvjy [14]

Answer:

(0, 33)   : Yes

(4.8,  30.5)  : Yes


Step-by-step explanation:

height of at least 24 ft :  y >= 24

horizontal distance of no more than 10 ft. : 0 <= x <= 10

The vertical height must be at least three times as high as the horizontal distance. No rocket should go higher than 33 ft.:

y >=  3x and y <= 33

So Constraints:

24 <= y <= 33

y >= 3x

0 <= x <= 10

Now check to see if those coordinate points meet all the constraints

(0, 33)   : Yes

(4.8, 30.5)  : Yes

(9, 26)  : No (because 26 is less than (3 * 9) = 27)

(4, 36) : No (because 36 > 33,  must be 24 <= y <= 33)

(2, 22): No (because 22 <24,  must be 24 <= y <= 33)

5 0
2 years ago
When Ms. Sugar turned on her oven, the temperature inside was 70 degrees Fahrenheit. The temperature began to rise at a rate of
Stella [2.4K]
It would take fourteen minutes
7 0
2 years ago
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Each morning darnell does a combination of aerobics and stretching exercises. the exercises burn different amounts of calories p
iogann1982 [59]

Answer:

x=34

Step-by-step explanation:

8 0
2 years ago
The regular octagon has a perimeter of 122.4 cm. A regular octagon with a radius of 20 centimeters and a perimeter of 122.4 cent
Mamont248 [21]

A C and E

Step-by-step explanation:

I took the test

6 0
2 years ago
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A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor ch
slavikrds [6]

Answer:  50x+250=75x+100

Step-by-step explanation:

Given: A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo.

Let x be the number of hours , then the total cost to create the logo plus is given by :-

C(x)=250+50x

A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.

The total cost to develop logo plus is given by :-

c(x)=100+75x

The equation to represent the costs would be the same is given by :_

C(x)=c(x)\\\Rightarrow50x+250=75x+100

4 0
2 years ago
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