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4 years ago

Could someone please help me with this part of my assignment? It's overdue, please help!

Mathematics

2 answers:

ANEK [815]4 years ago

5 0

Answer:

1. The question that asks about the relationship between two events can be "Did advertising affect the sales of a TV or not?"

2. The Scatter plot along with the Regression line is shown below.

3. This Residual plot indicates a linear relationship because it is a straight line (If we have a curve, not a straight line then it will be a non-linear relationship between sales and advertisement. As the advertisement for TV is increased it increases the sales of TV.

s344n2d4d5 [400]4 years ago

4 0

1. An example of a question that asks about the relationship between two events that can supported by data is this:
Are there fewer kids that play outside during a rainy day?
2. Data shows the there are fewer kids that play during a rainy day.
3. This means that kids stay inside during a rainy day.

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The grass in Jamie's yard grew 16 centimeters in 10 days. It was growing at a constant rate.How many days did it take the grass

anastassius [24]

Answer:

Step-by-step explanation:

16 cm / 10 days = 1.6 cm/day

10 days / 16 cm = 0.625 days/cm

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2 years ago

You do parenthesis first right? And then do division?

IrinaK [193]

Yes. Parenthesis first, then if any exponents, then multiplication or division, then addition and subtraction. PEMDAS.

4 0

3 years ago

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Assume that the population proportion is 0.46. Compute the standard error of the proportion, σp, for sample sizes of 500,000; 1,

sladkih [1.3K]

Answer:

a) 0.00070

b) 0.00050

c) 0.00022

d) 0.00016

e) 0.00005

Step-by-step explanation:

Standard error for proportion formula

S.E = √P(1 - P)/n

Where P = proportion

n = number of samples

Assume that the population proportion is 0.46. Compute the standard error of the proportion, σp, for sample sizes of a) 500,000

S.E = √P(1 - P)/n

= √0.46 × 0.54/500000

= √ 4.968 ×10^-7

= 0.0007048404

≈ 0.00070

b) 1,000,000

√P(1 - P)/n

= √0.46 × 0.54/1000000

= 0.0004983974

≈ 0.00050

c) 5,000,000

√P(1 - P)/n

= √0.46 × 0.54/5000000

= √ 4.968 ×10^-8

= 0.0002228901

≈ 0.00022

d) 10,000,000

√P(1 - P)/n

= √0.46 × 0.54/10000000

= √2.484 ×10^-8

= 0.0001576071

≈ 0.00016

e) 100,000,000

√P(1 - P)/n

= √0.46 × 0.54/100000000

= √2.484 × 10^-9

= 0.0000498397

= 0.00005

4 0

3 years ago

Write the direct variation if y=3 and x=10

anyanavicka [17]

Answer:

3/10

Step-by-step explanation:

6 0

3 years ago

Please help me with this

ad-work [718]

Everything should add up to 100%. So do
20 + 40 + 10 + 5 = 75

Now subtract 75 from 100

100 -75 = 25

25%

6 0

3 years ago

Read 2 more answers