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Arisa [49]
3 years ago
15

Your sock drawer has two white socks, four brown socks, and two black socks. You randomly pick a sock and put it on your left fo

ot and then pick another sock and put it on your right foot. You leave the house with a white sock on your left foot and a brown sock on your right foot. Find the probability of this occuring.
A. 7/26
B. 1/7
C. 14/33
D. 1/49
Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Answer:

P=2/7.

Step-by-step explanation:

We know that  sock drawer has two white socks, four brown socks, and two black socks. You randomly pick a sock and put it on your left foot and then pick another sock and put it on your right foot.

Two white socks, four brown socks, and two black socks = 8 socks.

We calculate the number of possible combinations:

C^8_2=\frac{8!}{2!(8-2)!}=28

We calculate the number of favorable combinations:

C_1^2\cdot C^4_1=2\cdot 4=8

Therefore, the probability is

P=8/28

P=2/7.

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Combine like terms to create an equivalent expression. Enter any coefficients as simplified proper or improper fractions or inte
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Answer:

  1 -9/7n

Step-by-step explanation:

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A circle is 360° all the way around; therefore, if you divide an arc's degree measure by 360°, you find the fraction of the circle's circumference that the arc makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you get the length along the arc.
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What is the slope of the ramp shown in the diagram below?
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3 years ago
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A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8
uysha [10]

Answer:

12

Step-by-step explanation:

Given :

                                    Male         Female        Total

Registered                                                          60

Non registered                                                   40

Total                          20                  80    

Solution :

N= 100

Formula of expected frequency = E_{ij}=\frac{T_i \times T_j}{N}

E_{ij}= expected frequency for the ith row/jth columm.

T_i = total in the ith row

T_j= total in the jth column

N = table grand total.

So, using formula  E_{11}=\frac{T_1 \times T_1}{100}

E_{11}=\frac{60 \times 20}{100}

E_{11}=12

E_{12}=\frac{T_1 \times T_2}{100}

E_{12}=\frac{60 \times 80}{100}

E_{12}=48

E_{21}=\frac{T_2 \times T_1}{100}

E_{21}=\frac{40 \times 20}{100}

E_{21}=8

E_{22}=\frac{T_2 \times T_2}{100}

E_{22]=\frac{80 \times 40}{100}

E_{22}=32

Expected frequency table

                                    Male         Female        Total

Registered                  12                  48            60

Non registered           8                   32             40

Total                           20                  80    

So, the expected frequency for males who are registered voters are  E_{11}=12

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victus00 [196]
The answer is A. 3.79, -0.79
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3 years ago
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