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BARSIC [14]
2 years ago
12

Two undergraduate students thought that college textbook prices might be related to the number of pages of a textbook. They coll

ected data for this and came up with a regression equation y= 0.147x - 3.42
Find the predicted price for a 500 page textbook.
(give the answer as decimal in dollars, like 24.32, which is 24 dollars and 32 cents)
Mathematics
1 answer:
ZanzabumX [31]2 years ago
4 0

Answer:

to The area (rounded to 4 decimal places) under the standard normal curve ... They Collected Data For This And Came Up With A Regression Equation Y= 0.147x - 3.42 Find ... Two undergraduate students thought that college textbook prices might be related to the ... Find the predicted price for a 500 page textbook.

Step-by-step explanation:

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The product of two consecutive, negative integers is 182. What equation represents the situation?
Sholpan [36]
-13 and -14

They both are consecutive negative integers that multiply to 182.
4 0
2 years ago
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Jenny is eight years older then twice her cousin sues age. The sum of their ages is less then 32. What is the greatest age that
maw [93]

Answer:

The age of Sue could be 7 years

Step-by-step explanation:

Jenny is 8 years older than twice her cousin Sue's age.

The first equation will be :

J = 8 + 2S ---------(1)

The sum of their ages is less than 32.

The second equation will be :

J + S < 32  ----------------(2)

Now rearrange both equations :

8 + 2S + S < 32

3S < 32 - 8

3S < 24

S < 24/3

S < 8

S = 7

The age of Sue could be 7 years.

3 0
2 years ago
Louden County Wildlife Conservancy counts butterflies each year. Data over the last three years regarding four types of butterfl
MrRa [10]

Incomple question. However, here's the remaining part of the question:

14

2009

Meadow Fritillary= 5

Variegated Fritillary= 7

Zebra Swallowtail= 33

Eastern-Tailed Blue= 242

Louden County Butterfly Count

2010

Meadow Fritillary 34

Variegated Fritillary 95

Zebra Swallowtail 21

Eastern-Tailed Blue 168

2011

Meadow Fritillary

Variegated Fritillary

Zebra Swallowtail

Eastern-Tailed Blue

10

170

<u>Options</u>:

A) All butterfly populations are steadily decreasing.

B)All butterfly populations were larger than usual in 2010.

C)The Eastern-Tailed Blue butterfly is more common than the others.

D)The Meadow Fritillary is equally common as the Variegated Fritillary

Answer:

<u>C</u>

Step-by-step explanation:

Looking through the above count data by Louden County Wildlife Conservancy from 2009 to 2011 we notice the Eastern- Trailed Blue butterfly has a higher count, which implies that the Eastern-Tailed Blue butterfly is more common than the other butterflies.

Therefore, we could infer from the samples, that the Eastern-Tailed Blue butterfly is more common than others from the records of the past 3 three years.

5 0
2 years ago
Iesha’s quality-control manager told her she must have 97% of her clocks functioning properly. She found a report that said 6 ou
german

Answer:

  • Keisha’s experimental probability is 1/50.
  • When the inventory is 4000 clocks, the prediction is that 3920 clocks will work.
  • Keisha will have more than 97% of the products working.

Step-by-step explanation:

These are three prediction that Keisha can make based on the report that said 6 of 300 clocks tested weren't working.

Base on that information, Keisha can calculate an experimental probability, dividing <em>clocks that don't work properly </em>by <em>the total amount of clocks</em><em>:</em>

<em>P_{clocks} = \frac{6}{300}=\frac{1}{50} = 0.02 (or 2\%)</em>

Therefore, the probability of success is 100% - 2% = 98%.

This means that Keisha has a probability of having 98% of all clocks functioning properly. So, she can make the prediction:<em> from 4000 clocks, 3920 will work. </em>Also, she can predict that she will actually have more than 97% working, because the experimental probability is higher than that.

6 0
2 years ago
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Aubree wanted to see if there is a connection between the time a given exam takes place and the average score of this exam. She
Andrews [41]

Answer:

you can divide the answers by the time duration of the exam and get your answer

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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