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postnew [5]
3 years ago
9

A scientist is studying the relationship between the depth of a watermelon vines’ roots and the weight of the watermelons produc

ed. The scientist collects measurements from a random sample of vines. He then conducts a significance test in which the null hypothesis is that there is no correlation between the two variables versus the alternative that the correlation is greater than 0. From this test he found a P-value of 0.0032. What does this tell us?A) There is significant evidence that the correlation is greater than 0 at the 0.05 level.B) There is no significant evidence that the correlation is greater than 0 at the 0.05 level.
C) The correlation is very small.D) The correlation is very close to 1.
Mathematics
1 answer:
Firdavs [7]3 years ago
7 0

Answer:

The answer is b

Step-by-step explanation:

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Suppose a basketball player has made 291 out of 389 free throws. If the player makes the next 2 free throws, I will pay you $38.
VMariaS [17]

Answer:

The expected value of the proposition is -$0.76.

Step-by-step explanation:

It is provided that a basketball player has made 291 out of 389 free throws.

Then rate of him making a free throw is,

P(\text{free throw})=\frac{291}{389}=0.7481

The probability that he makes the next 2 free throws is:

P(\text{Next 2 free throws})=(0.7481)^{2}=0.5596

The payout rules are:

  • If the player makes the next 2 free throws, I will pay you $38.
  • Otherwise you pay me $50.

Compute the expected value of the proposition as follows:

Expected value = $38 × P (Makes both) + (-$50) × P (Misses both)

                          =($38\times 0.5596)+(-$50\times (1-0.5596))\\=21.2648-22.02\\=-0.7552\\\approx -$0.76

Thus, the expected value of the proposition is -$0.76.

5 0
3 years ago
Find the area of the shaded region. Round the nearest hundredth if necessary. YZ=14.2m
andreyandreev [35.5K]

Complete Question

The complete question is shown on the first uploaded image

Answer:

1

   A_1  =  67.58 \ in^2

2

   A_2 =415.4 \ ft^2

3

   A_3  =  8.48 \ cm^2

4

  A_4 =  480.38 \ m^2

Step-by-step explanation:

Generally the area of a sector is mathematically represented as

         A =  \frac{\theta}{360} * \pi r^2

Now at r_1  = 11 in and  \theta_1 =  64^o

       A_1 =  \frac{64}{360} * 3.142  * 11^2

       A_1  =  67.58 \ in^2

Now at  r_2  = 20 ft in and  \theta_2  =  119 ^o

       A_2 =  \frac{119}{360} * 3.142 *  20^2

       A_2 =415.4 \ ft^2

Now at  r_3  = 6.5 cm   and  \theta_3 =  23 ^o

     A_3  =  \frac{23}{360} * 3.142 *  6.5 ^2

      A_3  =  8.48 \ cm^2

Now at  r_4  = 14.2 m   and  \theta_4 = 360 -87 =  273 ^o

         A_4 =  \frac{273}{360}  * 3.142 * 14.2^2

          A_4 =  480.38 \ m^2

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3 years ago
What is the average of all integers from 11 to 35
horsena [70]
24 becuase add the two together then divide by two
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3 years ago
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Help with calculus please?
Kazeer [188]
Wait let me know that the .12 means in the first question and i will fix the answer

int (x)(cosx) dx 

u=x      ----> take derivative     du=dx
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now use integration by parts 

u v - int (v)du
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x sinx  - (-cos(x)) + c =

answer is = x sinx + cosx + c



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3 years ago
Please help Please help <br><br> please help please help <br><br> please help please help
Vanyuwa [196]

A

i actually just searched it up "volume of a sphere with a diameter of 8" and thats what it said

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3 years ago
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