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JulijaS [17]
3 years ago
13

What is the correlation coefficient for the data in the table?

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0

Using a rain gauge, Gerry determined that 1/2 inch of rain fell during 3/4 of an hour.What is the unit rate of rainfall in inches per hour

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Look at the equation below. If x=2, what is the
LenKa [72]

Answer:

<u>The correct answer is B. 9</u>

Step-by-step explanation:

Let's solve for y in the equation below, given that x = 2

y = 6x - 3

Substituting x in the equation, this way:

y = 6 * 2 - 3

y = 12 - 3

y = 9

The value of y is 9 when x is 2

<u>The correct answer is B. 9</u>

7 0
3 years ago
. In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one stu
Sergeeva-Olga [200]

Answer: B. H_0:p_1=p_2

H_a:p_1>p_2

Step-by-step explanation:

Let p_1 be the proportion of all U.S. adults that smoked in 1995. Let p_2 denote the proportion of all U.S. adults that smoked in 2000.

Objective for the study : Whether the proportion of U.S. adults that smoke declined during the 5-year period between the samples.

i.e. p_1>p_2

Alternative hypothesis(H_a) is the statement containing population  parameter that shows there is significant difference between the groups being tested.

⇒ H_a:p_1>p_2

Null hypothesis(H_0) is the statement containing population parameter that shows there is no significant difference between the groups being tested.

⇒ H_0:p_1=p_2

Hence, The hypotheses to test in this problem are

H_0:p_1=p_2

H_a:p_1>p_2

Hence, the correct answer is B. H_0:p_1=p_2

H_a:p_1>p_2

8 0
3 years ago
Beth borrowed $13,000 at 12% simple interest for 1.75 years. How much interest did she have to pay?
dem82 [27]

The interest is: $2730.00

Step-by-step explanation:

I used a calculator

6 0
3 years ago
Read 2 more answers
Given f (x) = -3x + 4, solve for x when f (x) = 1
Solnce55 [7]

Answer:

1

Step-by-step explanation:

8 0
2 years ago
Can somebody help solve either of these?
Leya [2.2K]
First one:
The circumference of the whole circle is (2π x the radius), 
and 60° is (60/360) = 1/6 of the whole circumference.

Second one:
The area of the whole circle is (π x the radius²), and
the 40° sector is (40/360) = 1/9 of the whole area.

I hope this is enough help.
8 0
2 years ago
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