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Anna [14]
2 years ago
14

Steve determined the number of states each of his friends has visited. A number line goes from 0 to 44. The whiskers range from

1 to 40, and the box ranges from 4 to 10. A line divides the box at 8. Which statement must be true according to the box plot?
A. The data is skewed left and shows that half of Steve’s friends have visited 4 to 10 states.
B. The data is skewed left and shows that half of Steve’s friends have visited 10 to 40 states.
C. The data is skewed right and shows that half of Steve’s friends have visited 4 to 10 states.
D. The data is skewed right and shows that half of Steve’s friends have visited 10 to 40 states.
Mathematics
2 answers:
coldgirl [10]2 years ago
6 0

Answer:

The answer is C.

Step-by-step explanation:

Because I just took the test

Mnenie [13.5K]2 years ago
4 0

Answer:

A

Step-by-step explanation:

I got it right on edge

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3.52 A coin is tossed twice. Let Z denote the number of heads on the first toss and W the total number of heads on the 2 tosses.
Rufina [12.5K]

Answer:

a)  The joint probability distribution

P(0,0) = 0.36, P(1,0) = 0.24,   P(2,0) = 0,   P(0,1) = 0,  P(1,1) = 0.24,  P(2,1)= 0.16

b)  P( W = 0 ) = 0.36,    P(W = 1 ) = 0.48,  P(W = 2 ) = 0.16

c) P ( z = 0 ) = 0.6

  P ( z = 1 ) = 0.4

Step-by-step explanation:

Number of head on first toss = Z

Total Number of heads on 2 tosses = W

% of head occurring = 40%

% of tail occurring = 60%

P ( head ) = 2/5 ,    P( tail ) = 3/5

<u>a) Determine the joint probability distribution of W and Z </u>

P( W =0 |Z = 0 ) = 0.6         P( W = 0 | Z = 1 ) = 0

P( W = 1 | Z = 0 ) = 0.4        P( W = 1 | Z = 1 ) = 0.6

P( W = 1 | Z = 0 ) = 0           P( W = 2 | Z = 1 ) = 0.4

The joint probability distribution

P(0,0) = 0.36, P(1,0) = 0.24,   P(2,0) = 0,   P(0,1) = 0,  P(1,1) = 0.24,  P(2,1)= 0.16

<u>B) Marginal distribution of W</u>

P( W = 0 ) = 0.36,    P(W = 1 ) = 0.48,  P(W = 2 ) = 0.16

<u>C) Marginal distribution of Z ( pmf of Z )</u>

P ( z = 0 ) = 0.6

P ( z = 1 ) = 0.4

8 0
2 years ago
Two unique letters are chosen at random from the alphabet.
ElenaW [278]
A - choosing letter A first

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7 0
2 years ago
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Emma calculated the slope of the downhill hike to be . Her work is shown below. Determine whether her calculation was correct or
Greeley [361]

Answer:

  • Emma made a mistake. The slope should be -40.

Step-by-step explanation:

<u>Pair of points (x, y):</u>

  • (165, 900) and (180, 300)

<u>Slope formula:</u>

  • m = (y₂ - y₁)/(x₂ - x₁)

<u>Calculate the slope:</u>

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4 0
2 years ago
Given: mKP=2mIP, mIVK =120°<br> Find: m∠KJL.
anzhelika [568]

Answer:

<h2>The measure of angle KJL is 40°.</h2>

Step-by-step explanation:

Givens

m(KP)=2m(IP)

m(IVK)=120\°

Notice that

m(KP)+m(IP)+m(IVK)=360\°, by definition sum of arcs.

Replacing given values, we have

2m(IP)+m(IP)+120\°=360\°\\3m(IP)=360\° - 120\°\\m(IP)=\frac{240\°}{3}\\ m(IP)=80\°

Which means m(KP)=2(80\°)=160\°

Notice that arc KP is the subtended arc by angle KJL.

We know that the angle formed by a tangen and a secant is equal to one-half of the difference of the intercepted arcs.

m\angle KJL = \frac{1}{2} (m(KP)-m(IP))\\m \angle KJL = \frac{1}{2}(160\° - 80\° )=\frac{1}{2}(80\°)=40\°

Therefore, the measure of angle KJL is 40°.

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Express 9 ten thousandths in Scientific notation
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<span>9 ten thousandths=.0009= 9*10 to the -4 power</span>
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