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son4ous [18]
3 years ago
14

A coin is weighted so that the probability of tails is 0.58. The coin is tossed 25 times, and the number of times tails is shown

is recorded. This procedure 150 times with the number of times tails is shown noted each time. What kind of distribution is simulated?
A. A binomial distribution with n=25 and p=0.58
B. A binomial distribution with n=2 and p=0.58
C. A sampling distribution of the sample proportion with n=25 and p=0.58
D. A sampling distribution of the sample proportion with n=150 and p=0.58
E. There is not enough information to determine the distribution
Mathematics
1 answer:
Leya [2.2K]3 years ago
4 0

Answer:

A. A binomial distribution with n=25 and p=0.58

Step-by-step explanation:

We're looking at the number of tails, not the proportion.  The probability of tails is 0.58, and the number of tosses is 25.

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A portion of the graph of f(x) = −x2 − 2x + 8 is shown. Which of the following describes all solutions for f(x)?
Naily [24]

Answer:

(x,-x^2-2x+8) where −5 ≤ x ≤ 3

Step-by-step explanation:

The given function is f(x)=-x^2-2x+8.

We want to select the option that describes all the solutions to the parabola.

The domain of the parabola is −5 ≤ x ≤ 3.

This means that  any x=a on −5 ≤ x ≤ 3 that satisfies (a,f(a)), is a solution.

This can be rewritten as (a,-a^2-2a+8)

Therefore for x belonging to −5 ≤ x ≤ 3, all solutions are given by:

(x,-x^2-2x+8) where −5 ≤ x ≤ 3.

7 0
3 years ago
Please help me! I will give brainly!
Viktor [21]
<h3>Answer:  0.34</h3>

============================================================

Explanation:

A = 0.61 is given to us

Pumpkin B travels 0.28 of a mile further than A does, so,

B = A+0.28 = 0.61+0.28 = 0.89

Pumpkin B travels 0.89 of a mile.

---------------------

Pumpkin C travels 0.06 of a mile more than B does, which means,

C = B + 0.06

C = 0.89 + 0.06

C = 0.95

Pumpkin C travels 0.95 of a mile.

---------------------

The last thing to do is to subtract the values of C and A

C - A = 0.95 - 0.61 = 0.34

Pumpkin C travels 0.34 of a mile further compared to pumpkin A.

---------------------

Side note: if you want to convert from miles to feet, then multiply by 5280.

For instance, 0.61 miles = 0.61*5280 = 3,220.8 feet.

5 0
3 years ago
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If x = -3, what is the value of (1 - x)^3? Explain why
Anna007 [38]
Hello,

To find the value of (1 - x)³ when x = -3, you just need to substitute x = -3 into the given expression. 

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Your final answer is D, 64. Hopefully it helps! :D
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3 years ago
PLZ do this!!! I will give brainliest to anyone who does them all right. I need this done at 3:30 (it 2:44 right now)! No fake a
leva [86]

Answer:

A: y=1/3x+5

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D:y=2x+9

E: y=-10x+80

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#3 Rodneys error for

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Step-by-step explanation:

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Find the output y when the input x is -5<br> y=?
antiseptic1488 [7]

Answer: y=7

Step-by-step explanation: looking at the graph when x is -5 y= 7

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